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Fencer Intel
high 7.8

CVE-2020-10936 json

Sympa before 6.2.56 allows privilege escalation.

published 6y ago modified 4mo ago also EUVD-2020-3342

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Sympa before 6.2.56 allows privilege escalation.

Patch / fix

  • sympa sympa 6.2.56
  • sympa Debian 14, Debian 13, Debian 12 6.2.40~dfsg-5

debian advisories DEBIAN-CVE-2020-10936

  • sympa Ubuntu Pro 14.04 LTS 6.1.17~dfsg-1ubuntu0.1~esm1
  • sympa Ubuntu Pro 16.04 LTS 6.1.24~dfsg-1ubuntu0.1~esm1
  • sympa Ubuntu Pro 18.04 LTS 6.2.24~dfsg-1ubuntu0.1~esm1
  • sympa Ubuntu Pro 20.04 LTS 6.2.40~dfsg-4ubuntu0.20.04.1~esm1

ubuntu advisories UBUNTU-CVE-2020-10936

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-10936 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-10936 updated cvss 7.8

sympa: allows privilege escalation

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sysdream.com https://sysdream.com/news/lab/2020-05-25-cve-2020-10936-sympa-privileges-escalation-to-root/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.