CVE-2021-30130

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/phpseclib/phpseclib/pull/1635Patch, Third Party Advisory
https://github.com/phpseclib/phpseclib/releases/tag/2.0.31Release Notes, Third Party Advisory
https://github.com/phpseclib/phpseclib/releases/tag/3.0.7Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00025.htmlMailing List, Third Party Advisory
https://github.com/phpseclib/phpseclib/pull/1635Patch, Third Party Advisory
https://github.com/phpseclib/phpseclib/releases/tag/2.0.31Release Notes, Third Party Advisory
https://github.com/phpseclib/phpseclib/releases/tag/3.0.7Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00025.htmlMailing List, Third Party Advisory

Timeline

Published: Apr 6, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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