GHSA-2f25-pfq3-c7h8 · Severity: high · Ecosystem: composer — Phpseclib needs guardrails on large binaryfield integers
In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
Conclusion & alert: CVE-2023-49316 is rated Moderate Risk (48.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.76%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.15% | 0.76% | +0.61% |
| 2 | 2026-05-30 | 0.15% | 0.15% | -0.00% |
| 3 | 2026-05-22 | — | 0.15% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-2f25-pfq3-c7h8 · Severity: high · Ecosystem: composer — Phpseclib needs guardrails on large binaryfield integers
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-49316 not yet assigned priority: Debian including 1 source packages (php-phpseclib3), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2023-49316 |
ubuntu
|
medium | CVE-2023-49316 medium priority: Ubuntu including 1 source packages (php-phpseclib3), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 5, not-affected 3, needs-triage 2, DNE 1, released 1. | https://ubuntu.com/security/CVE-2023-49316 |