Is phpseclib/phpseclib affected by CVE-2023-49316?

Packagist phpseclib/phpseclib is affected in >=3.0.0 <3.0.34.

Is CVE-2023-49316 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.8%.

high

CVE-2023-49316

Q: Is CVE-2023-49316 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.8%.

Packagist · phpseclib/phpseclib

Summary

Phpseclib needs guardrails on large binaryfield integers

Severity: high
EPSS: 0.8% (p50)
Also known as: GHSA-2f25-pfq3-c7h8
Published: 2026-05-08

References

https://github.com/phpseclib/phpseclib/security/advisories/GHSA-2f25-pfq3-c7h8
https://nvd.nist.gov/vuln/detail/CVE-2023-49316
https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f

Related advisories

CVE-2024-27355 — high · Packagist/phpseclib/phpseclib
CVE-2024-27354 — high · Packagist/phpseclib/phpseclib
CVE-2026-44167 — high · Packagist/phpseclib/phpseclib
CVE-2026-32935 — high · Packagist/phpseclib/phpseclib
CVE-2023-52892 — high · Packagist/phpseclib/phpseclib
GHSA-m557-wrgg-6rp4 — medium · Packagist/phpseclib/phpseclib

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.