CVE-2022-39377

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.0 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 38% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
7.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.0Exploit: NoneExposed: 0

A fix is available — apply it.

sysstat is a set of system performance tools for the Linux operating system. On 32 bit systems, in versions 9.1.16 and newer but prior to 12.7.1, allocate_structures contains a size_t overflow in sa_common.c. The allocate_structures function insufficiently checks bounds before arithmetic multiplication, allowing for an overflow in the size allocated for the buffer representing system activities. This issue may lead to Remote Code Execution (RCE). This issue has been patched in version 12.7.1.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
—
EPSS
62.1%
KEV
Not listed

Published

November 8, 2022

Last Modified

November 3, 2025

References (13)

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntusysstat (11.2.0-1ubuntu0.3+esm1) @ xenial2026-05-25ubuntu
ubuntusysstat (12.5.6-1ubuntu0.1) @ kinetic2026-05-25ubuntu
ubuntusysstat (12.5.6-1ubuntu0.2) @ kinetic2026-05-25ubuntu
redhatsysstat-0:11.7.3-9.el82023-05-16redhat
redhatsysstat-0:12.5.4-5.el92023-05-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 50× 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.

Showing the most recent 100 of 109 total refreshes for this CVE.

  1. 2026-07-22 23:00 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
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  13. 2026-07-16 15:53 UTCOSV refresh
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  1. 2026-07-08 15:12 UTCEPSS rescore
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  44. 2026-06-11 13:58 UTCEPSS rescore
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  46. 2026-06-11 02:39 UTCOSV refresh
  47. 2026-06-10 22:17 UTCEPSS rescore
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  49. 2026-06-08 14:15 UTCEPSS rescore
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  75. 2026-05-27 13:39 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-39377?
CVE-2022-39377 is a high vulnerability published on November 8, 2022. sysstat is a set of system performance tools for the Linux operating system. On 32 bit systems, in versions 9.1.16 and newer but prior to 12.7.1, allocatestructures contains a sizet overflow in sacommon.c. The allocatestructures function insufficiently checks bounds before arithmetic…
When was CVE-2022-39377 disclosed?
CVE-2022-39377 was first published in the National Vulnerability Database on November 8, 2022, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-39377 actively exploited?
CVE-2022-39377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-39377?
CVE-2022-39377 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2022-39377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-39377, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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