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CVE-2025-0838

Abseil Common Libraries integer overflow

9.8 CRITICALEPSS 0.63%
  1. Published21 Feb 2025

Description

There exists a heap buffer overflow vulnerable in Abseil-cpp. The sized constructors, reserve(), and rehash() methods of absl::{flat,node}hash{set,map} did not impose an upper bound on their size argument. As a result, it was possible for a caller to pass a very large size that would cause an integer overflow when computing the size of the container's backing store, and a subsequent out-of-bounds memory write. Subsequent accesses to the container might also access out-of-bounds memory. We recommend upgrading past commit 5a0e2cb5e3958dd90bb8569a2766622cb74d90c1

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Abseil Common Libraries< 20250127.0
Debian Linux11.0

Remediation

Fixed in
Abseil Common Libraries≥ 20250127.0

References

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Frequently asked

Is CVE-2025-0838 being actively exploited?

CVE-2025-0838 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.63%.

How severe is CVE-2025-0838?

CVE-2025-0838 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.63% probability of exploitation.

Which products are affected by CVE-2025-0838?

Affected products include Abseil Common Libraries, Debian Linux.

How do I fix CVE-2025-0838?

Upgrade affected software to a fixed version, for example Abseil Common Libraries 20250127.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-0838 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.