How severe is CVE-2026-37538?

CVE-2026-37538 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-2026-37538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-37538?

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-2026-37538 have an EU (EUVD) identifier?

Yes. CVE-2026-37538 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26691.

When was CVE-2026-37538 published?

CVE-2026-37538 was published on 2026-05-01 and last updated on 2026-06-17.

CVE-2026-37538

CVE-2026-37538 is a high-severity vulnerability 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26691
Weakness: CWE-121
Published: 2026-05-01
Last modified: 2026-06-17

Description

Buffer overflow vulnerability in socketcand 0.4.2 in file socketcand.c in function main allows attackers to cause a denial of service or other unspecified impacts via crafted bus_name.

Frequently asked questions

What is CVE-2026-37538?: Buffer overflow vulnerability in socketcand 0.4.2 in file socketcand.c in function main allows attackers to cause a denial of service or other unspecified impacts via crafted bus_name.
How severe is CVE-2026-37538?: CVE-2026-37538 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-2026-37538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-37538?: 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-2026-37538 have an EU (EUVD) identifier?: Yes. CVE-2026-37538 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26691.
When was CVE-2026-37538 published?: CVE-2026-37538 was published on 2026-05-01 and last updated on 2026-06-17.

References

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