VDB
CVE-2026-7258
CVE-2026-7258
PUBLISHED
CVSS 6.300000190734863 MEDIUM
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.
EPSS 0.02% · 6.7th percentile
Risk Scores
CVSS v4.0
6.300000190734863
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/U:Amber
EPSS Score
0.02%
6.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PHP Group | PHP | 8.2.*, 8.4.*, 8.5.* |
Timeline
- May 8, 2026 PoC Published
- May 8, 2026 PoC Published
- May 10, 2026 EPSS Score
- May 10, 2026 CVE Published
- May 11, 2026 Security Advisory
- May 11, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score