CVE-2025-4969

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2025-05-21. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A vulnerability was found in the libsoup package. This flaw stems from its failure to correctly verify the termination of multipart HTTP messages. This can allow a remote attacker to send a specially crafted multipart HTTP body, causing the libsoup-consuming server to read beyond its allocated memory boundaries (out-of-bounds read).

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
58%
KEV
Not listed

Published

May 21, 2025

Last Modified

June 30, 2026

Advisory Details (3)

Auto-updated May 6, 2026
Patch available. Sources: redhat.
generic

(CVE-2025-4969) (#YWH-PGM9867-67) Off-by-One Out-of-Bounds Read in find_boundary() in soup-multipart.c (#447) · Issues · GNOME / libsoup · GitLab

https://gitlab.gnome.org/GNOME/libsoup/-/issues/447
redhat Patch Available

2367552 – (CVE-2025-4969) CVE-2025-4969 libsoup: Off-by-One Out-of-Bounds Read in find_boundary() in soup-multipart.c

https://bugzilla.redhat.com/show_bug.cgi?id=2367552
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-4969

Vendor Advisories for CVE-2025-4969(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibsoup2.4-tests (2.70.0-1ubuntu0.5+esm1) @ focal2026-05-21ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
libsoup2.42.74.3-1 ... 2.74.3-9 (16 versions)——
libsoup33.2.2-2 ... 3.6.6-1 (35 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
libsoup2.42.74.3-10.1, 2.74.3-11——
libsoup3—3.6.5-2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libsoup2.42.72.0-2, 2.72.0-2+deb11u1, 2.72.0-2+deb11u22.72.0-2+deb11u3—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libsoup3—3.6.5-2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 191 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
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  17. 2026-08-12 12:15 UTCOSV refresh
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-4969?
CVE-2025-4969 is a medium vulnerability published on May 21, 2025. A vulnerability was found in the libsoup package. This flaw stems from its failure to correctly verify the termination of multipart HTTP messages. This can allow a remote attacker to send a specially crafted multipart HTTP body, causing the libsoup-consuming server to read beyond its allocated…
When was CVE-2025-4969 disclosed?
CVE-2025-4969 was first published in the National Vulnerability Database on May 21, 2025, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-4969 actively exploited?
CVE-2025-4969 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 42.5% of all scored CVEs.
What is the CVSS score of CVE-2025-4969?
CVE-2025-4969 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2025-4969?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-4969, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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