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NVD / CVE Program· CNA Google

CVE-2025-0838: Heap Buffer overflow in Abseil

Noroxi assessment

Priority: Monitor (action score 23/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.62% (FIRST EPSS).
  • Someone on the same network segment can trigger it. A low-privileged account is enough. Special conditions such as timing or configuration are required.
  • Fixed version: abseil abseil-cpp 5a0e2cb5e3958dd90bb8569a2766622cb74d90c1.

Low priority for now. Upgrade to abseil abseil-cpp 5a0e2cb5e3958dd90bb8569a2766622cb74d90c1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

MediumCVSS 5.9 · v4.0—No exploit Fix available
Published
Feb 21, 2025
Updated
Jun 17, 2026
EPSS
0.6% · 49th percentile

Report tools

JSON

Action score

23

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Google
5.9
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-0838

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
abseilcommon libraries
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • abseil common librariesbefore 20250127.0
  • debian debian linux11.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Google). Independent of NVD's CPE analysis and usually ahead of it.

  • abseil abseil-cpp

    • before 5a0e2cb5e3958dd90bb8569a2766622cb74d90c1affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:11abseilbefore 0~20200923.3-2+deb11u10~20200923.3-2+deb11u1
Debian:12abseilbefore 20220623.1-1+deb12u120220623.1-1+deb12u1
Debian:13abseilbefore 20240722.0-320240722.0-3
openSUSE:Leap 15.6abseil-cppbefore 20240116.3-150600.19.6.120240116.3-150600.19.6.1
openSUSE:Tumbleweedabseil-cppbefore 20250814.0-2.120250814.0-2.1
SUSE:Linux Enterprise Micro 5.3abseil-cppbefore 20230802.3-150400.10.7.120230802.3-150400.10.7.1
SUSE:Linux Enterprise Micro 5.4abseil-cppbefore 20240116.3-150500.13.10.120240116.3-150500.13.10.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7abseil-cppbefore 20240116.3-150600.19.6.120240116.3-150600.19.6.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5abseil-cppbefore 20240116.3-8.6.120240116.3-8.6.1
SUSE:Linux Micro 6.0abseil-cppbefore 20230802.3-1.120230802.3-1.1
SUSE:Linux Micro 6.1abseil-cppbefore 20230802.3-slfo.1.1_1.120230802.3-slfo.1.1_1.1

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
abseil abseil-cpp5a0e2cb5e3958dd90bb8569a2766622cb74d90c1Vendor (CNA)
debian:abseil20220623.1-1+deb12u1 · Debian:12Package registry (OSV)
opensuse:abseil-cpp20240116.3-150600.19.6.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:abseil-cpp20240116.3-150600.19.6.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • A low-privileged account is enough.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Adjacent
Attack complexity
High
Privileges required
Low
User interaction
A
Scope
X

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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