CVE-2018-7186

Name: CVE-2018-7186
Creator: NVD / NIST
Published: 2018-02-16T16:29:00.16+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.47%

Last modified Jun 17, 2026

CVE-2018-7186 is a vulnerability of currently unknown severity. Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.. EPSS estimates a 3.47% chance of exploitation in the next 30 days.

Description

Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.

Metrics

EPSS Probability

3.47%

87.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Leptonica	Leptonica	< 1.75.3
Debian	Debian Linux	7.0

References

https://bugs.debian.org/890548Third Party Advisory
https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99aPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts/2018/02/msg00054.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202312-01
https://bugs.debian.org/890548Third Party Advisory
https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99aPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00005.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts/2018/02/msg00054.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202312-01

Timeline

Published: Feb 16, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-7186?

How severe is CVE-2018-7186?

Severity scoring for CVE-2018-7186 is pending analysis. The EPSS model estimates a 3.47% probability of exploitation in the next 30 days.

How do I fix CVE-2018-7186?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-7186?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST