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Fencer Intel
high 8.8

CVE-2015-5237 json

protobuf susceptible to buffer overflow

published 2017-09-25 9 y ago modified 2026-07-09 4 mo ago also GHSA-jwvw-v7c5-m82h , PYSEC-2017-150 , PYSEC-2017-65 , EUVD-2017-0100

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.0%
EPSS 5.0% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

protobuf allows remote authenticated attackers to cause a heap-based buffer overflow.

Patch / fix

  • nuget Google.Protobuf 3.4.0
  • maven com.google.protobuf:protobuf-parent 3.4.0
  • go github.com/protocolbuffers/protobuf 3.4.0
  • packagist google/protobuf 3.4.0
  • pypi protobuf 3.4.0
  • protobuf Ubuntu Pro 16.04 LTS 2.6.1-1.3ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2015-5237

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-5237 updated cvss 2.6

protobuf: integer overflow in serialization

  • Red Hat Enterprise Linux 7 protobuf, protobuf-vim, protobuf-java, protobuf-lite, protobuf-emacs, protobuf-python, +3 more
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.96% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Google.Protobuf
<3.4.0
3.4.0
maven com.google.protobuf:protobuf-parent
<3.4.0
3.4.0
go github.com/protocolbuffers/protobuf
<3.4.0
3.4.0
packagist google/protobuf
<3.4.0
3.4.0
pypi protobuf
<3.4.0
3.4.0

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.