CVE-2026-128991

xschem 2.9.9 through 3.4.7 contains an out-of-bounds read vulnerability in readxschemfile in src/save.c that mishandles embedded-symbol records lacking a preceding instance. Attackers can supply a crafted schematic beginning with a "" record, causing xschem to read and dereference memory below th...

EUVD-2026-125402

xschem 2.9.9 through 3.4.7 contains a heap out-of-bounds write vulnerability in readdataset 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,...

CVE-2026-128990

The xschem versions 2.9.9 through 3.4.7 are affected by a heap out-of-bounds write vulnerability in the read_dataset() function within src/rawtovcd.c . This issue stems from an unchecked variable index , allowing an attacker to provide a crafted ngspice .raw file that, during conversion via rawto...

EUVD-2026-125401

xschem 2.9.9 through 3.4.7 contains an out-of-bounds read vulnerability in readxschemfile in src/save.c that mishandles embedded-symbol records lacking a preceding instance. Attackers can supply a crafted schematic beginning with a "" record, causing xschem to read and dereference memory below th...

CVE-2026-128991 xschem 2.9.9 through 3.4.7 Out-of-Bounds Read via read_xschem_file() Embedded-Symbol Record

xschem 2.9.9 through 3.4.7 contains an out-of-bounds read vulnerability in readxschemfile in src/save.c that mishandles embedded-symbol records lacking a preceding instance. Attackers can supply a crafted schematic beginning with a "" record, causing xschem to read and dereference memory below th...

CVE-2026-128991

The software xschem (versions 2.9.9 through 3.4.7 ) contains an out-of-bounds read vulnerability within the read_xschem_file() function in src/save.c. The flaw arises because the software mishandles embedded-symbol records that lack a preceding instance. An attacker can provide a crafted schemati...