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ExploitedNot in CISA KEV yet

CVE-2023-31465

Exploitation confirmed. First attested on 2023-11-15 by GCVE · kevintel, GCVE · shadowserver.

  • Published2023-07-26

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in FSMLabs TimeKeeper 8.0.17 through 8.0.28. By intercepting requests from various timekeeper streams, it is possible to find the getsamplebacklog call. Some query parameters are passed directly in the URL and named arg[x], with x an integer starting from 1; it is possible to modify arg[2] to insert Bash code that will be executed directly by the server.

Timeline

dates in UTC
  1. 2023-07-2620:15CVE publishedNVD
  2. 2023-11-1503:36Listed as exploited by GCVEGCVE
  3. 2023-11-1503:36Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-31465?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-31465?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fsmlabs timekeeper
BranchAffectedFixed in
8.0≥ 8.0.17, ≤ 8.0.28no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-07-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-7xq6-44ph-rwqf

Frequently asked questions

What is CVE-2023-31465?

An issue was discovered in FSMLabs TimeKeeper 8.0.17 through 8.0.28. By intercepting requests from various timekeeper streams, it is possible to find the getsamplebacklog call. Some query parameters are passed directly in the URL and named arg[x], with x an integer starting from 1; it is possible to modify arg[2] to insert Bash code that will be executed directly by the server.

Is CVE-2023-31465 actively exploited?

A proof-of-concept exploit exists for CVE-2023-31465, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-31465?

CVE-2023-31465 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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