Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2019-12904

CVE-2019-12904MEDIUM

n/a n/a — In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are av…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   N   N  U  H  N  N    5.9   .0221   82.3     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Jun 19  Reserved by mitre
  Jun 19  Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2019-12904. Received CVSS 5.9 and CPE data from NVD.

CWE-668 · CNA: mitre · CVSS v3.1 · 6 references · NVD status: Modified

Description

In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 19, 2019	Reserved	Reserved by mitre
June 19, 2019	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2019-12904. Received CVSS 5.9 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-668

References (6)

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00049.html [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://dev.gnupg.org/T4541 [Third Party Advisory]
https://github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020 [Patch, Third Party Advisory]
https://github.com/gpg/libgcrypt/commit/daedbbb5541cd8ecda1459d3b843ea4d92788762 [Patch, Third Party Advisory]
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E

Authoritative record: CVE-2019-12904 at cve.org

Weaknesses: CWE-668

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-12904 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.