CVE-2023-35951: Multiple stack-based buffer overflow vulnerabilities exist in the readOFF.cpp functionality of libigl v2.4.0

This month

HIGH 7.8DOWNGRADE

CVE-2023-35951 is a high-severity flaw (CVSS 7.8) affecting libigl. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple stack-based buffer overflow vulnerabilities exist in the readOFF.cpp functionality of libigl v2.4.0. A specially-crafted .off file can lead to a buffer overflow. An attacker can arbitrary code execution to trigger these vulnerabilities.This vulnerability exists within the code responsible for parsing geometric vertices of an OFF file.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2024-05-28
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: libigl

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-28 14:15 UTCPublished CVE record published
2026-06-17 06:05 UTCUpdated Record last modified

libigl libigl DOWNGRADE

Affected: 2.4.0 · 2.5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4.0

1. Check installed version

apt-cache policy libigl || rpm -q libigl || libigl --version

2. No fixed release: DOWNGRADE to a release before 2.4.0 (Debian / Ubuntu)

apt-cache madison libigl sudo apt install libigl=<VERSION_BEFORE_2.4.0> sudo apt-mark hold libigl

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libigl sudo dnf downgrade libigl-<VERSION_BEFORE_2.4.0> sudo dnf versionlock add libigl

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-35951?

libigl: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-35951 being exploited?

CVE-2023-35951 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-35951 affect?

CVE-2023-35951 affects libigl. Severity is high (CVSS 7.8). Multiple stack-based buffer overflow vulnerabilities exist in the readOFF.cpp functionality of libigl v2.4.0. A specially-crafted .off file can lead to a buffer overflow. An attacker can arbitrary code execution to trigger these vulnerabili

How urgent is CVE-2023-35951?

Priority 43/100. High severity; Public exploit reference

Related CVEs

CVE-2024-24686 HIGH 7.8 DOWNGRADE Multiple stack-based buffer overflow vulnerabilities exist in the readOFF functionality of libigl v2.5.0
CVE-2024-24685 HIGH 7.8 DOWNGRADE Multiple stack-based buffer overflow vulnerabilities exist in the readOFF functionality of libigl v2.5.0
CVE-2024-24684 HIGH 7.8 DOWNGRADE Multiple stack-based buffer overflow vulnerabilities exist in the readOFF functionality of libigl v2.5.0
CVE-2024-24584 MEDIUM 4.3 DOWNGRADE Multiple out-of-bounds read vulnerabilities exist in the readMSH functionality of libigl v2.5.0
CVE-2024-24583 MEDIUM 4.3 DOWNGRADE Multiple out-of-bounds read vulnerabilities exist in the readMSH functionality of libigl v2.5.0

References

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