Scientists have uncovered a new mechanism that may help break down highly persistent PFAS pollutants.
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NASA’s Psyche Spacecraft Is About To Fly Shockingly Close to Mars
NASA’s Psyche spacecraft is using a daring close flyby of Mars to slingshot toward one of the solar system’s strangest asteroids.
New critical Exim mailer flaw allows remote code execution
A critical vulnerability affecting certain configurations of the Exim open-source mail transfer agent could be exploited by an unauthenticated remote attacker to execute arbitrary code.
Identified as CVE-2026–45185, the security issue impacts some Exim versions before 4.99.3 that use the default GNU Transport Layer Security (GnuTLS) library for secure communication. It is a user-after-free (UAF) flaw triggered during the TLS shutdown while handling BDAT chunked SMTP traffic.
Exim frees a TLS transfer buffer but later continues using stale callback references that can write data into the freed memory region, which can lead to unauthenticated remote code execution (RCE).