How severe is CVE-2012-2666?

CVE-2012-2666 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-2666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2666?

CVE-2012-2666 affects Golang Go. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-2666?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-2666 published?

CVE-2012-2666 was published on 2021-07-09 and last updated on 2026-06-16.

CVE-2012-2666

CVE-2012-2666 is a critical-severity vulnerability in Golang Go with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-377.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-377
Affected product: Golang Go
Published: 2021-07-09
Last modified: 2026-06-16

Description

golang/go in 1.0.2 fixes all.bash on shared machines. dotest() in src/pkg/debug/gosym/pclntab_test.go creates a temporary file with predicable name and executes it as shell script.

Frequently asked questions

What is CVE-2012-2666?: golang/go in 1.0.2 fixes all.bash on shared machines. dotest() in src/pkg/debug/gosym/pclntab_test.go creates a temporary file with predicable name and executes it as shell script.
How severe is CVE-2012-2666?: CVE-2012-2666 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-2666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2666?: CVE-2012-2666 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-2666?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-2666 published?: CVE-2012-2666 was published on 2021-07-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:golang:go:1.0.2:*:*:*:*:*:*:*

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