PatchTheCVECVE-2026-25237: PEAR is a framework and distribution system for reusable PHP components
CVE-2026-25237 is a critical-severity flaw (CVSS 9.8) affecting pearweb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, use of preg_replace() with the /e modifier in bug update email handling can enable PHP code execution if attacker-controlled content reaches the evaluated replacement. This issue has been patched in version 1.33.0.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 61%) |
| CISA exploited list | No |
| Weakness | CWE-624 |
| Published | 2026-02-03 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-25237?
pearweb: upgrade to 1.33.0. Exact commands for each OS are on this page.
Is CVE-2026-25237 being exploited?
CVE-2026-25237 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-25237 affect?
CVE-2026-25237 affects pearweb. Severity is critical (CVSS 9.8). PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, use of preg_replace() with the /e modifier in bug update email handling can enable PHP code execution if attacker-controlled content reaches t
How urgent is CVE-2026-25237?
Priority 49/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
Related CVEs
- CVE-2026-25241 CRITICAL 9.8 UPGRADE PEAR is a framework and distribution system for reusable PHP components
- CVE-2026-25240 CRITICAL 9.8 UPGRADE PEAR is a framework and distribution system for reusable PHP components
- CVE-2026-25239 HIGH 7.5 UPGRADE PEAR is a framework and distribution system for reusable PHP components
- CVE-2026-25238 CRITICAL 9.8 UPGRADE PEAR is a framework and distribution system for reusable PHP components
- CVE-2026-25236 CRITICAL 9.8 UPGRADE PEAR is a framework and distribution system for reusable PHP components