3.1

CVE-2026-7836: netatalk Incorrect Calculation

CVSS: 3.1v3.1LowDeferred
AliasesUBUNTU-CVE-2026-7836DEBIAN-CVE-2026-7836
Published 21-05-2026Last modified 21-05-2026
Open JSON

Vulnerability summary

CVE-2026-7836 is a low (CVSS 3.1) Incorrect Calculation vulnerability in netatalk. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities.

Overall risk
12/100
0100
Low · default modelHow is this calculated?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-05-2026
    PublishedVulnerability first disclosed.
  2. 21-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

+0.02 pp

From 0.26% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • netatalkAll versions (No fix recorded) | < 4.5.0~ds-1
Netatalk1 product
Ubuntu1 product
  • netatalkAll versions (No fix recorded)

3 vendors · 3 products

References

4 links