Medium 4.2Published Nov 29, 2019

CVE-2014-3591Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determi…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during multiplication.

CVSS: 4.2 MEDIUM (v3.1, NVD)CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

gnupg gnupg gnupg:gnupg	before 1.4.19	NVD
gnupg libgcrypt gnupg:libgcrypt	before 1.6.3	NVD
debian debian_linux debian:debian_linux	7.0; 8.0	NVD

References

References

http://www.cs.tau.ac.il/~tromer/radioexp/	third-party-advisory
http://www.debian.org/security/2015/dsa-3184	third-party-advisory
http://www.debian.org/security/2015/dsa-3185	third-party-advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html	patch, release-notes, vendor-advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html	patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.