Format string vulnerability in the _msgout function in rpc.pcnfsd in IBM AIX 6.1, 5.3, and earlier; IBM VIOS 2.1, 1.5, and earlier; NFS/ONCplus B.11.31_09 and earlier on HP HP-UX B.11.11, B.11.23, and B.11.31; and SGI IRIX 6.5 allows remote attackers to execute arbitrary code via an RPC request containing format string specifiers in an invalid directory name.
CVE-2010-1039
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EG Risk
- 0EG Risk 0/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses intrinsic severity with real-world exploitation and automatability, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. It is distinct from the 0–10 EG Score, which measures severity.
- EPSS
- 97.2%
- KEV
- Not listed
Published
May 20, 2010
Last Modified
April 29, 2026
References (52)
- hp-security-alert@hphttp://aix.software.ibm.com/aix/efixes/security/pcnfsd_advisory.asc
- hp-security-alert@hphttp://marc.info/?l=bugtraq&m=127428077629933&w=2
- hp-security-alert@hphttp://osvdb.org/64729
- hp-security-alert@hphttp://secunia.com/advisories/39835
- hp-security-alert@hphttp://secunia.com/advisories/39911
- hp-security-alert@hphttp://securitytracker.com/id?1024016
- hp-security-alert@hphttp://www.checkpoint.com/defense/advisories/public/2010/cpai-13-May.html
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ73590
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ73599
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ73681
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ73757
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ73874
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ75369
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ75440
- hp-security-alert@hphttp://www.ibm.com/support/docview.wss?uid=isg1IZ75465
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 34× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 01:01 UTCEG score recompute
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-14407✓ verifiedFirst seen Jul 18, 2010
rpc.pcnfsd - Remote Format String
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-134
Frequently asked(4)
What is CVE-2010-1039?
When was CVE-2010-1039 disclosed?
Is CVE-2010-1039 actively exploited?
How do I remediate CVE-2010-1039?
Dependency Blast Radius
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