Allocation of Resources Without Limits or Throttling Affecting openssh package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 May 2025
- disclosed17 Feb 2025
- creditQualys Security
Introduced: 17 Feb 2025
CVE-2025-26466 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the ssh_packet_read_poll_seqnr() function in packet.c. Ping packets (SSH2_MSG_PING) received without authentication buffer but neither send nor free PONG responses, which can consume unlimited resources (memory and CPU).