Riskcovery

CVE-2026-86716

Cesanta mJS mjs_tok.c skip_spaces_and_comments heap-based overflow

State
Published
Severity
6.9 Medium
Published
Sep 8, 2026
Updated
Sep 8, 2026
Reserved
Sep 8, 2026

Read the record on cve.org

Description

A vulnerability was determined in Cesanta mJS up to 1.26. Affected is the function skip_spaces_and_comments of the file src/mjs_tok.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
3.07.3 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
2.07.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:URVulDB

Weaknesses

Affected Products

ProductVersions
mJSCesanta
  • 1.0Affected
  • 1.1Affected
  • 1.2Affected
  • 1.3Affected
  • 1.4Affected
  • 1.5Affected
  • 1.6Affected
  • 1.7Affected
  • 1.8Affected
  • 1.9Affected
  • 1.10Affected
  • 1.11Affected
  • 1.12Affected
  • 1.13Affected
  • 1.14Affected
  • 1.15Affected
  • 1.16Affected
  • 1.17Affected
  • 1.18Affected
  • 1.19Affected
  • 1.20Affected
  • 1.21Affected
  • 1.22Affected
  • 1.23Affected
  • 1.24Affected
  • and 2 more versions

References

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