EUVD-2021-27704

🗓️ 03 Oct 2025 20:07:09Reported by EUVDType

ElGamal implementation in Botan allows plaintext recovery via cross-configuration attack in OpenPGP.

Reporter	Title	Published	Views	Family All 39
ATTACKERKB	CVE-2021-40529	6 Sep 202119:15	–	attackerkb
AlpineLinux	CVE-2021-40529	6 Sep 202118:45	–	alpinelinux
CNNVD	Botan 加密问题漏洞	6 Sep 202100:00	–	cnnvd
CVE	CVE-2021-40529	6 Sep 202118:45	–	cve
Cvelist	CVE-2021-40529	6 Sep 202118:45	–	cvelist
Debian CVE	CVE-2021-40529	6 Sep 202118:45	–	debiancve
Fedora	[SECURITY] Fedora 35 Update: botan2-2.18.2-1.fc35	12 Nov 202100:38	–	fedora
Fedora	[SECURITY] Fedora 34 Update: botan2-2.17.3-4.fc34	16 Nov 202115:40	–	fedora
Tenable Nessus	GLSA-202208-14 : Mozilla Thunderbird: Multiple Vulnerabilities	10 Aug 202200:00	–	nessus
Tenable Nessus	openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:1635-1)	30 Dec 202100:00	–	nessus

[
  {
    "enisaIdVendor": [
      {
        "id": "dfa5a739-6884-375b-a6fd-28ef7a653979",
        "vendor": {
          "name": "n/a"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "b9a610b4-1364-360f-abd9-89a6bd596470",
        "product": {
          "name": "n/a"
        },
        "product_version": "n/a"
      }
    ]
  }
]

Source	Link
suse	www.suse.com/security/cve/CVE-2021-40529.html
advisories	www.advisories.mageia.org/CVE-2021-40529.html
security	www.security.archlinux.org/CVE-2021-40529
eprint	www.eprint.iacr.org/2021/923
ibm	www.ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1
ibm	www.ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2
github	www.github.com/randombit/botan/pull/2790
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPHGYWNJQKWLTUWBNSFB4F66MQDIL3IB/
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/72NB4OLD3VHJC3YF3PEP2HKF6BYURPAO/
security	www.security.gentoo.org/glsa/202208-14

03 Oct 2025 20:07Current

7.5High risk

Vulners AI Score7.5

CVSS 3.15.9

CVSS 22.6

EPSS0.01483