NULL pointer dereference in FreeBSD and OpenBSD ftpd service
Priority LOW 37CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
It was found in FreeBSD 8.0, 6.3 and 4.9, and OpenBSD 4.6 that a null pointer dereference in ftpd/popen.c may lead to remote denial of service of the ftpd service.
Why it matters now
EPSS 0.02418 84th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | FreeBSD and OpenBSD ftpd service | FreeBSD 8.0, 6.3 and 4.9, OpenBSD 4.6 | — | No fix listed | CNA |
- FreeBSD and OpenBSD ftpd service Vendor— Affected FreeBSD 8.0, 6.3 and 4.9, OpenBSD 4.6 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:openbsd:openbsd:4.6:*:*:*:*:*:*:* | 4.6 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:4.9:*:*:*:*:*:*:* | 4.9 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:6.3:*:*:*:*:*:*:* | 6.3 | Vulnerable | OpenBSD |
| cpe:2.3:o:openbsd:openbsd:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | OpenBSD |
- cpe:2.3:o:openbsd:openbsd:4.6:*:*:*:*:*:*:* Versions 4.6 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:4.9:*:*:*:*:*:*:* Versions 4.9 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·OpenBSD
- cpe:2.3:o:openbsd:openbsd:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·OpenBSD
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2010-4816
- 2026-10-03 Alias added: GHSA-95v2-wh6j-6p7q
References
More Openbsd vulnerabilities
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
- TI-2007-05153 Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD… CVSS 2.0HIGH 7.2
- TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
- TI-2026-40218 sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication… CVSS 3.1HIGH 8.3
- TI-2004-00444 Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31… CVSS 2.0HIGH 10.0
Sources
- CVE-2010-4816 · CVE Program
- CVE-2010-4816 · NVD
- FIRST EPSS
- GHSA-95v2-wh6j-6p7q · GitHub Advisory Database · CC BY 4.0
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