How severe is CVE-2026-7836?

CVE-2026-7836 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-7836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-7836?

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

Does CVE-2026-7836 have an EU (EUVD) identifier?

Yes. CVE-2026-7836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31222.

When was CVE-2026-7836 published?

CVE-2026-7836 was published on 2026-05-21 and last updated on 2026-06-17.

CVE-2026-7836

CVE-2026-7836 is a low-severity vulnerability with a CVSS 3.x base score of 3.1. 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-682.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31222
Weakness: CWE-682
Published: 2026-05-21
Last modified: 2026-06-17

Description

An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input.

Frequently asked questions

What is CVE-2026-7836?: An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input.
How severe is CVE-2026-7836?: CVE-2026-7836 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-7836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-7836?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-7836 have an EU (EUVD) identifier?: Yes. CVE-2026-7836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31222.
When was CVE-2026-7836 published?: CVE-2026-7836 was published on 2026-05-21 and last updated on 2026-06-17.

References

https://netatalk.io/security/CVE-2026-7836

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