CVE-2021-4286

Name: CVE-2021-4286
Creator: NVD / NIST
Published: 2022-12-27T11:15:10.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-4286 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability, which was classified as problematic, has been found in cocagne pysrp up to 1.0.16. This issue affects the function calculate_x of the file srp/_ctsrp.py. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, has been found in cocagne pysrp up to 1.0.16. This issue affects the function calculate_x of the file srp/_ctsrp.py. The manipulation leads to information exposure through discrepancy. Upgrading to version 1.0.17 is able to address this issue. The name of the patch is dba52642f5e95d3da7af1780561213ee6053195f. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216875.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.70%

48.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
Pysrp Project	Pysrp	< 1.0.17

References

https://github.com/cocagne/pysrp/commit/dba52642f5e95d3da7af1780561213ee6053195fPatch, Third Party Advisory
https://github.com/cocagne/pysrp/pull/43Patch, Third Party Advisory
https://github.com/cocagne/pysrp/releases/tag/1.0.17Release Notes, Third Party Advisory
https://vuldb.com/?ctiid.216875Third Party Advisory
https://vuldb.com/?id.216875Third Party Advisory
https://github.com/cocagne/pysrp/commit/dba52642f5e95d3da7af1780561213ee6053195fPatch, Third Party Advisory
https://github.com/cocagne/pysrp/pull/43Patch, Third Party Advisory
https://github.com/cocagne/pysrp/releases/tag/1.0.17Release Notes, Third Party Advisory
https://vuldb.com/?ctiid.216875Third Party Advisory
https://vuldb.com/?id.216875Third Party Advisory

Timeline

Published: Dec 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4286?

How severe is CVE-2021-4286?

CVE-2021-4286 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4286?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4286?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST