CVE-2026-34059
HIGHCVSS v3
7.5
HIGH
EPSS Score
0.1%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Microsoft Security Update (CVE-2026-34059)
Technical Details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Published
- 5/7/2026
- MSRC Title
- Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()
Frequently Asked Questions
What is CVE-2026-34059?
Microsoft Security Update (CVE-2026-34059)
Is CVE-2026-34059 actively exploited?
Active exploitation of CVE-2026-34059 has not been confirmed. The EPSS score is 0.1%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-34059?
CVE-2026-34059 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Is CVE-2026-34059 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.