CVE-2021-43398

mediumPriorität · verfolgen · 22EPSS 0.020 · 80. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.96% (80th) EPSS

CVSS 5 · medium

Is it mine?

2 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · bewertet 2026-10-27

Crypto++ (aka Cryptopp) 8.6.0 and earlier contains a timing leakage in MakePublicKey(). There is a clear correlation between execution time and private key length, which may cause disclosure of the length information of the private key. This might allow attackers to conduct timing attacks. NOTE: this report is disputed by the vendor and multiple third parties. The execution-time differences are intentional. A user may make a choice of a longer key as a tradeoff between strength and performance. In making this choice, the amount of information leaked to an adversary is of infinitesimal value

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

5.3

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-203USprimär

betroffene Produkte (2)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
cryptopp crypto++≤ 8.6.0nvdUScpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:*

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

veröffentlicht 2021-11-04geändert 2026-06-17

verwandt (886)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2024-39891US	medium5.3OT kritisch	1.67% (77th)	KEV	2024-07-02
In the Twilio Authy API, accessed by Authy Android before 25.1.0 and Authy iOS before 26.1.0, an unauthenticated endpoint provided access to certain phone-number data, as exploited…
CVE-2017-5753US	medium5.6	93.8% (100th)	Exploit	2018-01-04
Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side…
CVE-2023-28770US	high7.5	57.8% (99th)	Exploit	2023-04-27
The sensitive information exposure vulnerability in the CGI “Export_Log” and the binary “zcmd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote un…
CVE-2021-4191US	medium5.3	80.0% (100th)	Exploit	2022-03-28
An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnera…
CVE-2017-5715US	medium5.6	73.2% (99th)	Exploit	2018-01-04
Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access v…

+881 weitere

Referenzen (9)

Externe Belege — Patches, Meldungen, Analysen.

scry

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