CVE-2026-55967

LOW

AES-GCM streaming APIs do not reject >64 GiB cumulative single messages, enabling counter wrap and keystream reuse

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-55967 has a selected CVSS score of 2.0 (low).

Description

AES-GCM encryption/decryption with extremely large cumulative single message sizes (>64 GiB) were not properly rejected by the streaming APIs, allowing counter wrap, keystream reuse, and consequent plaintext recovery.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jun 25, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

wolfSSL

Browse wolfSSL / wolfSSL

Default status: unaffected

CVE List4.8.0 to ≤ 5.9.1affected

References

3