| Name | CVE-2026-63362 |
| Description | An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| open62541 (PTS) | forky, sid, trixie | 1.4.11.1-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| open62541 | source | (unstable) | (unfixed) | | | |
Notes
Fixed by: https://github.com/open62541/open62541/commit/8098907673099afe6b726de05675146066b24d9c (v1.3.19, v1.4.18, v1.5.6)
Fixed by: https://github.com/open62541/open62541/commit/a1257feec0c539f191cb2d40f72f116a901d3322 (v1.3.19, v1.4.18, v1.5.6)
Fixed by: https://github.com/open62541/open62541/commit/2da371bcdaadeb23051635a60e38f31039af9fd8 (v1.3.19, v1.4.18, v1.5.6)
Fixed by: https://github.com/open62541/open62541/commit/ba5bf5928d61e2c8a92b008e2da847722785868f (v1.5.6)