CVE-2010-1039Vios Vulnerability
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…
Published May 20, 2010 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2010-1039 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Nfs\/oncplus (Hp), Vios (Ibm), Aix (Ibm) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 20% probability of exploitation in the next 30 days.
- Fixed versions are available, including Nfs\/oncplus <=b.11.31_09, Aix <=5.3, Vios <=1.5.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
20%
Higher than 97.4% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
43/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryHPSBUX02523
- advisory39835
- advisoryADV-2010-1199
- advisoryADV-2010-1211
- advisoryADV-2010-1212
- advisoryADV-2010-1213
Description
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.
Affected Products
42 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Nfs\/oncplusHp | See advisory | b.11.31_09 |
| ViosIbm | 1.4, 2.1 | 1.5 |
| AixIbm | 1.2.1, 1.3, 2.2.1, 3.1, 3.2, 3.2.0, 3.2.4, 3.2.5 | 5.3 |
| IrixSgi | 6.5 | n/a |
Patched Releases
Nfs\/oncplus
<=b.11.31_09
Aix
<=5.3
Vios
<=1.5
Timeline
Publicly disclosed
May 20, 2010
Last updated
Apr 28, 2026
Weakness Type
- CWE-134 Use of Externally-Controlled Format String
References
- advisoryHPSBUX02523
- advisory39835
- advisoryADV-2010-1199
- advisoryADV-2010-1211
- advisoryADV-2010-1212
FAQ
Common Questions.
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 strin…
Affected: Nfs\/oncplus (Hp); Vios (Ibm) versions 1.4, 2.1; Aix (Ibm) versions 1.2.1, 1.3, 2.2.1, 3.1, 3.2, 3.2.0, 3.2.4, 3.2.5, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Nfs\/oncplus <=b.11.31_09, Aix <=5.3, Vios <=1.5.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2010-1039 On Your Attack Surface?
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