CVE-2025-2784 | Libsoup: heap buffer over-read in `skip_insignificant_space` when sniffing content

Exp

A flaw was found in libsoup. The package is vulnerable to a heap buffer over-read when sniffing content via the skip_insight_whitespace() function. Libsoup clients may read one byte out-of-bounds in response to a crafted HTTP response by an HTTP server.

Published: 2025-04-03 Last update: 2025-11-18 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-2784 is rated Exploit Available (58.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.61%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-2784

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-2784

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.45% 0.61% +0.16%
2 2026-05-12 2.15% 0.45% -1.70%
3 2026-03-26 — 2.15% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-2784

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.0 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 4.7 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 [email protected]

Weakness enumeration for CVE-2025-2784

OS Trackers for CVE-2025-2784

vendor priority summary link
alpine — CVE-2025-2784: 1 source package rows (libsoup); 8 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 8. https://security.alpinelinux.org/vuln/CVE-2025-2784
debian not yet assigned CVE-2025-2784 not yet assigned priority: Debian including 2 source packages (libsoup2.4, libsoup3), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6, open 1. https://security-tracker.debian.org/tracker/CVE-2025-2784
redhat medium — https://access.redhat.com/security/cve/CVE-2025-2784
suse high CVE-2025-2784 severity important: SUSE including 59 source package names (2.2.1-7.62:libvmtools0-13.0.5-160000.1.1, 2.2.1-7.62:open-vm-tools-13.0.5-160000.1.1, …), 261 product×package rows across 52 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (52 product lines)): Fixed 261. https://www.suse.com/security/cve/CVE-2025-2784/
ubuntu medium CVE-2025-2784 medium priority: Ubuntu including 2 source packages (libsoup2.4, libsoup3), 16 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): released 11, not-affected 4, DNE 1. https://ubuntu.com/security/CVE-2025-2784

Affected software / configurations for CVE-2025-2784

Vendor Product Version Raw CPE
gnome libsoup < 3.6.5 cpe:2.3:a:gnome:libsoup:*:*:*:*:*:*:*:*
redhat codeready_linux_builder 10.0 cpe:2.3:a:redhat:codeready_linux_builder:10.0:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_arm64 10.0_aarch64 cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:10.0_aarch64:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_arm64_eus 10.0_aarch64 cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:10.0_aarch64:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_ibm_z_systems 10.0_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:10.0_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_ibm_z_systems_eus 10.0_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:10.0_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian 10.0_ppc64le cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian:10.0_ppc64le:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian_eus 10.0_ppc64le cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:10.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
redhat enterprise_linux 10.0 cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 8.8 cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_eus 9.4 cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:*
redhat enterprise_linux_eus 9.6 cpe:2.3:o:redhat:enterprise_linux_eus:9.6:*:*:*:*:*:*:*
redhat enterprise_linux_eus 10.0 cpe:2.3:o:redhat:enterprise_linux_eus:10.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64 8.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64 9.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64 10.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:10.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 8.8_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.8_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 9.2_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.2_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 9.4_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.4_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 9.6_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.6_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 10.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:10.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 8.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 9.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 10.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:10.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 8.8_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.2_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.2_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.4_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.4_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.6_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.6_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 10.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:10.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian 8.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian 9.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian 10.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:10.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 8.8_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.8_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.2_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.2_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.4_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.4_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 10.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:10.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 8.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 9.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 9.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 9.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 8.8 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 8.8 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:8.8:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 9.0 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 9.2 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 9.4 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.4:*:*:*:*:*:*:*
redhat enterprise_linux_update_services_for_sap_solutions 9.6 cpe:2.3:o:redhat:enterprise_linux_update_services_for_sap_solutions:9.6:*:*:*:*:*:*:*

References for CVE-2025-2784

URL Tags
https://access.redhat.com/errata/RHSA-2025:21657
https://access.redhat.com/errata/RHSA-2025:7505 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8126 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8132 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8139 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8140 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8252 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8480 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8481 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8482 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:8663 Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:9179 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-2784 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2354669 Third Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/422 Exploit Issue Tracking
https://lists.debian.org/debian-lts-announce/2025/04/msg00036.html
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