CVE-2025-32052 | Libsoup: heap buffer overflow in sniff_unknown()

A flaw was found in libsoup. A vulnerability in the sniff_unknown() function may lead to heap buffer over-read.

Published: 2025-04-03 Last update: 2026-04-22 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-32052 is rated Low Risk (38/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2025-32052

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 2026-05-12 1.11% 0.16% -0.95%
2 2026-01-28 0.26% 1.11% +0.86%
3 2025-12-18 — 0.26% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-32052

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L 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:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 2.5 [email protected]

Weakness enumeration for CVE-2025-32052

GitHub Security Advisory for CVE-2025-32052

GHSA-9qwg-ch53-9rxw · Severity: medium — A flaw was found in libsoup. A vulnerability in the sniff_unknown() function may lead to heap...

OS Trackers for CVE-2025-32052

vendor priority summary link
debian not yet assigned CVE-2025-32052 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-2025-32052
redhat medium — https://access.redhat.com/security/cve/CVE-2025-32052
suse medium CVE-2025-32052 severity moderate: SUSE including 57 source package names (2.2.1-7.31:libvmtools0-13.0.5-160000.1.1, 2.2.1-7.31:open-vm-tools-13.0.5-160000.1.1, …), 259 product×package rows across 51 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (51 product lines)): Fixed 259. https://www.suse.com/security/cve/CVE-2025-32052/
ubuntu medium CVE-2025-32052 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-2025-32052

Affected software / configurations for CVE-2025-32052

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-32052

cvelogic Threat Intelligence