How severe is CVE-2025-29774?

CVE-2025-29774 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2025-29774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29774?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-29774 have an EU (EUVD) identifier?

Yes. CVE-2025-29774 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7890.

When was CVE-2025-29774 published?

CVE-2025-29774 was published on 2025-03-14 and last updated on 2026-06-17.

CVE-2025-29774

CVE-2025-29774 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7890
Weakness: CWE-347
Published: 2025-03-14
Last modified: 2026-06-17

Description

xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.

Frequently asked questions

What is CVE-2025-29774?: xml-crypto is an XML digital signature and encryption library for Node.js. An attacker may be able to exploit a vulnerability in versions prior to 6.0.1, 3.2.1, and 2.1.6 to bypass authentication or authorization mechanisms in systems that rely on xml-crypto for verifying signed XML documents. The vulnerability allows an attacker to modify a valid signed XML message in a way that still passes signature verification checks. For example, it could be used to alter critical identity or access control attributes, enabling an attacker with a valid account to escalate privileges or impersonate another user. Users of versions 6.0.0 and prior should upgrade to version 6.0.1 to receive a fix. Those who are still using v2.x or v3.x should upgrade to patched versions 2.1.6 or 3.2.1, respectively.
How severe is CVE-2025-29774?: CVE-2025-29774 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-29774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-29774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-29774 have an EU (EUVD) identifier?: Yes. CVE-2025-29774 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7890.
When was CVE-2025-29774 published?: CVE-2025-29774 was published on 2025-03-14 and last updated on 2026-06-17.

References

Other CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities

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CVE-2024-32962 — Critical (CVSS 10.0): xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default…
CVE-2022-24884 — Critical (CVSS 10.0): ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()`…
CVE-2021-33885 — Critical (CVSS 10.0): An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a…

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