CVE-2025-0725 | gzip integer overflow

Exp

When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zlib 1.2.0.3 or older**, an attacker-controlled integer overflow would make libcurl perform a buffer overflow.

Published: 2025-02-05 Last update: 2025-06-27 Assigner: 2499f714-1537-4658-8207-48ae4bb9eae9 Source: 2499f714-1537-4658-8207-48ae4bb9eae9
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-0725 is rated High Exploit Risk (68.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.60%). 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-2025-0725

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

Exploit prediction scoring system (EPSS) score for CVE-2025-0725

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 2026-05-07 0.44% 0.60% +0.16%
2 2026-05-03 0.45% 0.44% -0.01%
3 2026-04-21 — 0.45% —

Full EPSS history (50 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-0725

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.3 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 3.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-0725

OS Trackers for CVE-2025-0725

vendor priority summary link
alpine — CVE-2025-0725: 1 source package rows (curl); 244 state rows across 6 repos (3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 6, open 238. https://security.alpinelinux.org/vuln/CVE-2025-0725
debian unimportant CVE-2025-0725 unimportant priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2025-0725
redhat low — https://access.redhat.com/security/cve/CVE-2025-0725
suse medium CVE-2025-0725 severity moderate: SUSE including 353 source package names (0.0.17-1.1:curl-8.6.0-150600.4.21.1, 0.0.17-1.1:libcurl4-8.6.0-150600.4.21.1, …), 957 product×package rows across 321 product lines (Container bci/gcc, Container bci/golang, … (321 product lines)): Fixed 730, Known Affected 221, Known Not Affected 4, First Fixed 2. https://www.suse.com/security/cve/CVE-2025-0725/
ubuntu low CVE-2025-0725 low priority: Ubuntu including 1 source packages (curl), 8 status rows across 8 suites (bionic, focal, jammy, noble, oracular, trusty, upstream, xenial): not-affected 7, needs-triage 1. https://ubuntu.com/security/CVE-2025-0725

Affected software / configurations for CVE-2025-0725

Vendor Product Version Raw CPE
netapp hci_baseboard_management_controller — cpe:2.3:a:netapp:hci_baseboard_management_controller:-:*:*:*:*:*:*:*
netapp hci_h610s_firmware — cpe:2.3:o:netapp:hci_h610s_firmware:-:*:*:*:*:*:*:*
netapp hci_h610c_firmware — cpe:2.3:o:netapp:hci_h610c_firmware:-:*:*:*:*:*:*:*
netapp hci_h615c_firmware — cpe:2.3:o:netapp:hci_h615c_firmware:-:*:*:*:*:*:*:*
netapp solidfire_\&_hci_management_node — cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
netapp solidfire_\&_hci_storage_node — cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:*
haxx curl >= 7.10.5, < 8.12.0 cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
haxx libcurl >= 7.10.5, < 8.12.0 cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*

References for CVE-2025-0725

cvelogic Threat Intelligence