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CVE-2012-3012: The Arbiter Power Sentinel 1133A device with firmware before 11Jun2012 Rev 421 allows remote attackers to caus

46
This month
HIGH 7.8UPGRADEMITIGATE

CVE-2012-3012 is a high-severity flaw (CVSS 7.8) affecting power sentinel 1133a firmware, power sentinel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Arbiter Power Sentinel 1133A device with firmware before 11Jun2012 Rev 421 allows remote attackers to cause a denial of service (Ethernet outage) via unspecified Ethernet traffic that fills a buffer, as demonstrated by a port scan.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score7.8 (High)
EPSS exploit chance1.5% (top 26%)
CISA exploited listNo
WeaknessCWE-119
Published2012-09-05
Last modified2026-06-16
Publisher (CNA): ICS-CERT · Vendor: arbiter

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

Am I affected?

Timeline

arbiter power sentinel 1133a firmware UPGRADE
Affected: <= 11jun2012
Fixed in: newer than 11jun2012
Safe to downgrade to: no unaffected older release
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.
arbiter power sentinel MITIGATE
Affected: 1133a
Fixed in: no fixed release known
Safe to downgrade to: a release before 1133a
Firmware
Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.
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-2012-3012?

power sentinel 1133a firmware: upgrade to newer than 11jun2012; power sentinel: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-3012 being exploited?

CVE-2012-3012 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-2012-3012 affect?

CVE-2012-3012 affects power sentinel 1133a firmware, power sentinel. Severity is high (CVSS 7.8). The Arbiter Power Sentinel 1133A device with firmware before 11Jun2012 Rev 421 allows remote attackers to cause a denial of service (Ethernet outage) via unspecified Ethernet traffic that fills a buffer, as demonstrated by a port scan.

How urgent is CVE-2012-3012?

Priority 46/100. High severity

References

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