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Fencer Vulns
high 7.5

CVE-2003-0826 in the critical feed json

lsh daemon (lshd) does not properly return from certain functions in (1) read_line.c, (2) channel_commands.c, or (3) client_keyexchange.c w…

published 2003-09-23 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0817

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.1%
EPSS 12.1% chance of exploitation in 30 days, percentile 96%
public exploits
2
Exploit-DB

Summary

lsh daemon (lshd) does not properly return from certain functions in (1) read_line.c, (2) channel_commands.c, or (3) client_keyexchange.c when long input is provided, which could allow remote attackers to execute arbitrary code via a heap-based buffer overflow attack.

Patch / fix

  • lsh-utils Debian 12 1.4.2-6

debian advisories DEBIAN-CVE-2003-0826

Timeline

  1. First public exploit (EDB-23162)
  2. Published

Exploit prediction

12.11% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-23162 LSH 1.x - Remote Buffer Overflow (2) remote, 2003-09-19
  • EDB-23161 LSH 1.x - Remote Buffer Overflow (1) remote, 2003-09-19

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.