CVE-2026-42792
CVE-2026-42792: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-42792] Erlang OTP epmd: Remote Denial of Service via connection exhaustion
CVE-2026-42792Source published Source updated
Improper Handling of Exceptional Conditions vulnerability in Erlang OTP erts (epmd) allows an unauthenticated remote attacker to permanently terminate the Erlang Port Mapper Daemon (epmd) via connection slot exhaustion. The do_accept function in erts/epmd/src/epmd_srv.c calls epmd_cleanup_exit() when accept(2) returns EMFILE (per-process file descriptor limit reached) or ENFILE (system-wide file descriptor limit reached), rather than treating these as recoverable conditions. An attacker can exhaust epmd's file descriptor slots by holding many TCP connections open while periodically sending a single byte to reset the idle timeout, then causing accept(2) to return EMFILE, which kills the daemon. epmd has no per-source-IP connection cap, making the attack feasible from a single source. On…
- Affected products in this advisory
- Red Hat Hardened Images
- Source-reported affected versions
- < 17.0
- < 29.0.4
- < 28.5.0.4
- < 27.3.4.15
- Source-reported fixed versions
- erlang27-main-27.3.4.15-0.1.hum1
- RHSA-2026:47009
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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