What is CVE-2023-27560?

CVE-2023-27560 is a high-severity vulnerability in Phpseclib, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2023-03-03.

How severe is CVE-2023-27560?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-27560 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Phpseclib

CVE-2023-27560

Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.

EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Phpseclib
N/a — versions n/a

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

cve@mitre.org (Patch)
cve@mitre.org (Release Notes)

Frequently asked questions

What is CVE-2023-27560?: CVE-2023-27560 is a high-severity vulnerability in Phpseclib, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2023-03-03.
How severe is CVE-2023-27560?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-27560 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.