CVE-2025-13502: Webkit: webkitgtk / wpe webkit: out-of-bounds read and integer underflow vulnerability leading to dos
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.6%
EPSS score, percentile 49.6 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 7.5 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- before 2.50.2
Unaffected 0:2.50.3-2.el7_9; 0:2.50.3-1.el8_10; 0:2.50.3-2.el8_2; 0:2.50.3-2.el8_4; 0:2.50.3-2.el8_4; 0:2.50.3-2.el8_6; and 9 more
Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Advisories and patches
- RHSA-2025:22789
- RHSA-2025:22790
- RHSA-2025:23110
- RHSA-2025:23433
- RHSA-2025:23434
- RHSA-2025:23451
- RHSA-2025:23452
- RHSA-2025:23583
- RHSA-2025:23591
- RHSA-2025:23742
- RHSA-2025:23743
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 2.50.2 |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el7_9 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el8_10 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_2 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_4 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_4 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_6 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_6 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_6 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_8 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-2.el8_8 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el9_7 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el9_0 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el9_2 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el9_4 |
Versions not listed are: affected.
| Status | Versions |
|---|---|
| Unaffected | 0:2.50.3-1.el9_6 |
Versions not listed are: affected.
| Status | Versions |
|---|
Versions not listed are: unknown.
| Status | Versions |
|---|
Versions not listed are: affected.
Versions the record lists as unaffected: 0:2.50.3-2.el7_9, 0:2.50.3-1.el8_10, 0:2.50.3-2.el8_2, 0:2.50.3-2.el8_4, 0:2.50.3-2.el8_6, 0:2.50.3-2.el8_8, 0:2.50.3-1.el9_7, 0:2.50.3-1.el9_0.
Source: CVE List, as of . About the data.
About this vulnerability
A flaw was found in WebKitGTK and WPE WebKit. This vulnerability allows an out-of-bounds read and integer underflow, leading to a UIProcess crash (DoS) via a crafted payload to the GLib remote inspector server.
Summary: CVE record, as of .
- CISA has not added CVE-2025-13502 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
- The CVE record was published on 25 Nov 2025.
- The CVE record carries a CVSS v3.1 base score of 7.5 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.6% (percentile 49.6), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable yes, technical impact partial.
- The credits in the CVE record name AISLE as finder.
Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
Webkit: webkitgtk / wpe webkit: out-of-bounds read and integer underflow vulnerability leading to dos
A flaw was found in WebKitGTK and WPE WebKit. This vulnerability allows an out-of-bounds read and integer underflow, leading to a UIProcess crash (DoS) via a crafted payload to the GLib remote inspector server.
Source: CVE List, as of . About the data.
Weakness
CWE-125
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
Known exploited Red Hat vulnerabilities
- CVE-2015-3246: Red Hat Libuser Race Condition Vulnerability
- CVE-2015-5287: Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability
- CVE-2018-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability
- CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability
- CVE-2021-4034: Red Hat Polkit Out-of-Bounds Read and Write Vulnerability