How severe is CVE-2025-15281?

CVE-2025-15281 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-15281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15281?

CVE-2025-15281 affects Gnu Glibc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15281?

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

Does CVE-2025-15281 have an EU (EUVD) identifier?

Yes. CVE-2025-15281 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3385.

When was CVE-2025-15281 published?

CVE-2025-15281 was published on 2026-01-20 and last updated on 2026-06-17.

CVE-2025-15281

CVE-2025-15281 is a high-severity vulnerability in Gnu Glibc with a CVSS 3.x base score of 7.5. 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-908.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3385
Weakness: CWE-908
Affected product: Gnu Glibc
Published: 2026-01-20
Last modified: 2026-06-17

Description

Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Frequently asked questions

What is CVE-2025-15281?: Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
How severe is CVE-2025-15281?: CVE-2025-15281 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-15281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15281?: CVE-2025-15281 affects Gnu Glibc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-15281 have an EU (EUVD) identifier?: Yes. CVE-2025-15281 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3385.
When was CVE-2025-15281 published?: CVE-2025-15281 was published on 2026-01-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

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