CVE-2022-25315: debian debian_linux Integer Overflow or Wraparound

Modified

AliasesALPINE-CVE-2022-25315UBUNTU-CVE-2022-25315DEBIAN-CVE-2022-25315

Published 18-02-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-25315 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 4.82% chance of exploitation in the next 30 days, higher than 91.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

9.8/10

010

Critical · v3.1 (CVE.org)

EPSS score

4.82%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1github

Timeline

18-02-2022
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.

CVSS metrics

6 scores · 5 sources · 2 versions

v3.19.8v2.07.5

EPSS trend

Probability

4.82%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

No change 0.00 pp

From 4.82% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

githubUnverified
Libexpat
Maturity: poc

Weaknesses

CWE · root cause

CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu16 products

ayttmAll versions (No fix recorded)
cableswigAll versions (No fix recorded)
cadaverAll versions (No fix recorded)
coin3All versions (No fix recorded)
expat< 2.1.0-4ubuntu1.4+esm6 | < 2.1.0-7ubuntu0.16.04.5+esm5 | < 2.2.5-3ubuntu0.7 | < 2.2.9-1ubuntu0.4

Show all 16

Debian3 products

expat< 2.4.5-1
libxmltokAll versions (No fix recorded)
debian_linuxEOL10.0 | 11.0

Oracle2 products

http_server12.2.1.3.0 | 12.2.1.4.0
zfs_storage_appliance_kit8.8

Alpine1 product

expat< 2.2.10-r2 | < 2.2.10-r4 | < 2.4.5-r0

Fedoraproject1 product

fedoraEOL34 | 35

Libexpat_project1 product

libexpat< 2.4.5

Siemens1 product

sinema_remote_connect_server< 3.1

7 vendors · 25 products

References

18 links

github.com/libexpat/libexpat/pull/559X Refsource MISCREPORTExploitThird Party Advisory
www.openwall.com/lists/oss-security/2022/02/19/1Mailing ListX Refsource MLISTThird Party Advisory
www.debian.org/security/2022/dsa-5085Vendor AdvisoryX Refsource DEBIANThird Party Advisory
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORA
lists.fedoraproject.org/archives/…Vendor AdvisoryX Refsource FEDORA
lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing ListX Refsource MLISTThird Party Advisory
www.oracle.com/security-alerts/cpuapr2022.htmlX Refsource MISCPatchThird Party Advisory
security.netapp.com/advisory/ntap-20220303-0008/X Refsource CONFIRMThird Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfX Refsource CONFIRMThird Party Advisory
security.gentoo.org/glsa/202209-24Vendor AdvisoryX Refsource GENTOOThird Party Advisory

Show all 18 references