Oracle Communications / Signaling (libgcrypt) CVEs

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Overview 3 matches · 0 in Waratek scope · 0 protected · 0 exploited · 0 CISA KEV · 0 public PoC · 0 EPSS ≥ 0.5

3matches 0in Waratek scope0.0% 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0public PoC0.0% 0EPSS ≥ 0.50.0%

Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 3 100.0% Withdrawn CVE 0 0.0%

Critical 0 0.0% High 0 0.0% Medium 3 100.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%

blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 3 100.0% not established 0 0.0% unrecorded 0 0.0%

Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 3 100.0%

split by StatusSeverityProtectionExploit maturity peak 2 / quarter

Q3 211 Not applicable1 Medium1 not blocked1 No public exploit1 Q4 210 Q1 220 Q2 220 Q3 220 Q4 220 Q1 230 Q2 230 Q3 230 Q4 230 Q1 240 Q2 240 Q3 240 Q4 240 Q1 250 Q2 250 Q3 250 Q4 250 Q1 260 Q2 262 Not applicable2 Medium2 not blocked2 No public exploit2

Q4 21Q2 22Q4 22Q2 23Q4 23Q2 24Q4 24Q2 25Q4 25Q2 26

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CVE	Severity	Published▾	Status	Exploitation	Description
CVE-2026-41990	Medium	2026-04-23	Not applicable	No public exploit	Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.
CVE-2026-41989	Medium	2026-04-23	Not applicable	No public exploit	Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
CVE-2021-40528	Medium	2021-09-06	Not applicable	No public exploit	The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.

CVE

Severity

Published▾

Status

Exploitation

Description

CVE-2026-41990

Medium

2026-04-23

Not applicable

No public exploit

Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.

CVE-2026-41989

Medium

2026-04-23

Not applicable

No public exploit

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

CVE-2021-40528

Medium

2021-09-06

Not applicable

No public exploit

The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.