cve.bz

CVE-2026-128990 xschem 2.9.9 through 3.4.7 Heap Out-of-Bounds Write via rawtovcd read_dataset()

8.5 high

High (8.5) in stefan schippers xschem.

On this page
xschem 2.9.9 through 3.4.7 contains a heap out-of-bounds write vulnerability in read_dataset() in src/rawtovcd.c due to an unchecked variable index. Attackers can supply a crafted ngspice .raw file that, when converted with rawtovcd, writes file-controlled heap pointers at chosen signed offsets, corrupting heap memory.

Severity

CVSS 4.0

8.5 high
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-787 Out-of-bounds Write
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • stefan schippers:xschem

Versions

From the CNA's record in the CVE List.

ProductAffected
Stefan Schippers xschemfrom 2.9.9 through 3.4.7

References

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