CVE-2025-31335

The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on non-XML signatures).

Published: 2025-03-28 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-31335 is rated Low Risk (19.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.19%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

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-2025-31335

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 0.15% 0.19% +0.04%
2 2026-01-22 0.02% 0.15% +0.13%
3 2025-03-28 — 0.02% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31335

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/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: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:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
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.
 2.2 1.4 [email protected]

Weakness enumeration for CVE-2025-31335

OS Trackers for CVE-2025-31335

vendor priority summary link
debian not yet assigned CVE-2025-31335 not yet assigned priority: Debian including 1 source packages (opensaml), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-31335
redhat medium — https://access.redhat.com/security/cve/CVE-2025-31335
suse medium CVE-2025-31335 severity moderate: SUSE including 14 source package names (libsaml-devel-2.5.5-3.6.1, libsaml-devel-3.1.0-150300.3.3.1, …), 26 product×package rows across 8 product lines (SUSE Linux Enterprise Module for Server Applications 15 SP6, SUSE Linux Enterprise Module for Server Applications 15 SP7, … (8 product lines)): Fixed 26. https://www.suse.com/security/cve/CVE-2025-31335/
ubuntu medium CVE-2025-31335 medium priority: Ubuntu including 2 source packages (opensaml, opensaml2), 10 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial): released 8, DNE 1, ignored 1. https://ubuntu.com/security/CVE-2025-31335

Affected software / configurations for CVE-2025-31335

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-31335

cvelogic Threat Intelligence