CVE-2008-0852 json
freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which t…
published 2008-02-21 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-0859
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.2%
- EPSS 6.2% chance of exploitation in 30 days, percentile 93%
- public exploits
- 1
- Exploit-DB
Summary
freeSSHd 1.2 and earlier allows remote attackers to cause a denial of service (crash) via a SSH2_MSG_NEWKEYS packet to TCP port 22, which triggers a NULL pointer dereference.
Timeline
- First public exploit (EDB-31218)
- Published
Exploit prediction
6.23% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-31218 freeSSHd 1.2 - 'SSH2_MSG_NEWKEYS' Remote Denial of Service dos, 2008-02-17
- securityfocus.com http://www.securityfocus.com/bid/27845 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
securityfocus.com
/bid/27845
vdb-entry, exploit
-
secunia.com
/advisories/29002
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2008/0591
vdb-entry
-
securityfocus.com
/archive/1/488363/100/0/threaded
mailing-list
- aluigi.altervista.org /adv/freesshdnull-adv.txt
Sources
- CVE List CVE-2008-0852
- NVD CVE-2008-0852
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