Nixpkgs security tracker

Untriaged

Permalink CVE-2026-63559

8.7 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): High (H)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): None (N)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): High (H)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): None (N)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 5 days, 2 hours ago by @LeSuisse Activity log

Created suggestion 5 days, 11 hours ago
@LeSuisse ignored package open62541pp 5 days, 2 hours ago

o6 Automation open62541 Integer Overflow or Wraparound

An integer overflow in the UA_Variant arrayDimensions product computation in open62541 may allow a remote attacker to read out-of-bounds heap memory, potentially disclosing sensitive information.

References

Affected products

open62541

=<1.5.4
=<1.3.17
==master
=<1.4.16

Matching in nixpkgs

pkgs.open62541

Open source implementation of OPC UA

nixos-unstable 1.4.16
- nixpkgs-unstable 1.4.17
- nixos-unstable-small 1.4.17
nixos-26.05 1.4.17
- nixos-26.05-small 1.4.17
- nixpkgs-26.05-darwin 1.4.17

Ignored packages (1)

pkgs.open62541pp

C++ wrapper of the open62541 OPC UA library

nixos-unstable 0.21.1
- nixpkgs-unstable 0.21.2
- nixos-unstable-small 0.21.2
nixos-26.05 0.21.1
- nixos-26.05-small 0.21.1
- nixpkgs-26.05-darwin 0.21.1

Package maintainers