How severe is CVE-2025-67897?

CVE-2025-67897 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-67897 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-67897?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-67897 have an EU (EUVD) identifier?

Yes. CVE-2025-67897 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203279.

When was CVE-2025-67897 published?

CVE-2025-67897 was published on 2025-12-14 and last updated on 2026-06-17.

CVE-2025-67897

CVE-2025-67897 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-195.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203279
Weakness: CWE-195
Published: 2025-12-14
Last modified: 2026-06-17

Description

In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.

Frequently asked questions

What is CVE-2025-67897?: In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.
How severe is CVE-2025-67897?: CVE-2025-67897 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-67897 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-67897?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-67897 have an EU (EUVD) identifier?: Yes. CVE-2025-67897 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203279.
When was CVE-2025-67897 published?: CVE-2025-67897 was published on 2025-12-14 and last updated on 2026-06-17.

References

Other CWE-195 vulnerabilities

CVE-2024-25388 — High (CVSS 8.4): drivers/wlan/wlan_mgmt,c in RT-Thread through 5.0.2 has an integer signedness error and resultant buffer overflow.
CVE-2020-6096 — High (CVSS 8.1): An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000.…
CVE-2025-65495 — High (CVSS 7.5): Integer signedness error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers…
CVE-2026-41682 — Medium (CVSS 6.9): pupnp is an SDK for development of UPnP device and control point applications. Prior to version 1.18.5, pupnp is…
CVE-2026-26981 — Medium (CVSS 6.5): OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the…
CVE-2025-30646 — Medium (CVSS 6.5): A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks…

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