
May Linux Patch Wednesday. This time: 1091 vulnerabilities. Of those, 716 are in the Linux Kernel. 5 vulnerabilities are exploited in the wild:
RCE – PHP CSS Parser (CVE-2020-13756). In AttackerKB, an exploit exists.
DoS – Apache ActiveMQ (CVE-2025-27533). In AttackerKB, an exploit exists.
SFB – Chromium (CVE-2025-4664). In CISA KEV.
PathTrav – buildkit (CVE-2024-23652) and MemCor – buildkit (CVE-2024-23651). In BDU FSTEC.
For 52 () more, there are signs of existing public exploits. Two trending vulnerabilities I’ve mentioned before::
RCE – Kubernetes “IngressNightmare” (CVE-2025-1974 and 4 others)
RCE – Erlang/OTP (CVE-2025-32433)
Exploits for these are also notable:
EoP – Linux Kernel (CVE-2023-53033)
XSS – Horde IMP (CVE-2025-30349)
PathTrav – tar-fs (CVE-2024-12905)
SFB – kitty (CVE-2025-43929)
DoS – libxml2 (CVE-2025-32414)

Hi! My name is Alexander and I am a Vulnerability Management specialist. You can read more about me here. Currently, the best way to follow me is my Telegram channel @avleonovcom. I update it more often than this site. If you haven’t used Telegram yet, give it a try. It’s great. You can discuss my posts or ask questions at @avleonovchat.
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