CVE-2005-0139: Unknown vulnerability in rpc.mountd in SGI IRIX 6.5.25, 6.5.26, and 6.5.27 does not sufficiently restrict acce

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HIGH 7.5MITIGATE

CVE-2005-0139 is a high-severity flaw (CVSS 7.5) affecting irix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unknown vulnerability in rpc.mountd in SGI IRIX 6.5.25, 6.5.26, and 6.5.27 does not sufficiently restrict access rights for read-mostly exports, which allows attackers to conduct unauthorized activities.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-264
Published	2005-09-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sgi

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-09-21 20:03 UTCPublished CVE record published
2026-06-16 22:10 UTCUpdated Record last modified

sgi irix MITIGATE

Affected: 6.5.25 · 6.5.26 · 6.5.27

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.5.25

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2005-0139?

irix: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-0139 being exploited?

CVE-2005-0139 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2005-0139 affect?

CVE-2005-0139 affects irix. Severity is high (CVSS 7.5). Unknown vulnerability in rpc.mountd in SGI IRIX 6.5.25, 6.5.26, and 6.5.27 does not sufficiently restrict access rights for read-mostly exports, which allows attackers to conduct unauthorized activities.

How urgent is CVE-2005-0139?

Priority 44/100. High severity

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References

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