CISA ADP Vulnrichment

Answer in brief

CVE-2026-41989 records a Medium severity (CVSS 6.7) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps gnupg/Libgcrypt (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 23, 2026Updated Sep 8, 2026Source checked Sep 19, 2026First seen by HOL Jul 14, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.7
Exploitation: Not marked as known exploited
Affected software: 7 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps gnupg/Libgcrypt (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
gnupg/Libgcryptgeneric	>=1.8.8 <1.10.4 \|\| >=1.11.0 <1.11.3 \|\| >=1.12.0 <1.12.2	1.10.4, 1.11.3, 1.12.2
Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric	>=V3.1.6 <*	*
Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric	>=V3.1.5 <*	*
Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric	>=V3.1.6 <*	*
Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric	>=V3.1.5 <*	*
Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric	>=V3.1.6 <*	*
Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric	>=V3.1.5 <*	*

Recommended response

Check inventory. Check lockfiles and deployed manifests for gnupg/Libgcrypt, Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP.
Review the reported fix. Update gnupg/Libgcrypt to 1.10.4; Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP to *; Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP to *; Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP to *; Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP to *; Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFP to *; Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFP to * if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Apr 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 14, 2026

Sources and claim methodology

Upstream source description

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

Quoted source text, attributed separately from HOL analysis.