How severe is CVE-2026-44710?

CVE-2026-44710 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-44710 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44710?

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

Does CVE-2026-44710 have an EU (EUVD) identifier?

Yes. CVE-2026-44710 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32660.

When was CVE-2026-44710 published?

CVE-2026-44710 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-44710

CVE-2026-44710 is a medium-severity vulnerability with a CVSS 3.x base score of 4.6. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32660
Weakness: CWE-476
Published: 2026-05-27
Last modified: 2026-06-17

Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisks_drive_get_serial(), udisks_drive_get_vendor(), and udisks_drive_get_model() directly to strcmp() without NULL checks. The GIO/UDisks API documentation states these accessors can return NULL for devices that do not expose the corresponding field. Passing NULL to strcmp() is undefined behaviour (typically a SIGSEGV). This vulnerability is fixed in 0.8.7.

Frequently asked questions

What is CVE-2026-44710?: pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisks_drive_get_serial(), udisks_drive_get_vendor(), and udisks_drive_get_model() directly to strcmp() without NULL checks. The GIO/UDisks API documentation states these accessors can return NULL for devices that do not expose the corresponding field. Passing NULL to strcmp() is undefined behaviour (typically a SIGSEGV). This vulnerability is fixed in 0.8.7.
How severe is CVE-2026-44710?: CVE-2026-44710 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-44710 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-44710?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44710 have an EU (EUVD) identifier?: Yes. CVE-2026-44710 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32660.
When was CVE-2026-44710 published?: CVE-2026-44710 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://github.com/mcdope/pam_usb/security/advisories/GHSA-j8cq-2gv6-gfwf

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