PAN-SA-2025-0015 Chromium: Monthly Vulnerability Update (September 2025)
Exploit Maturity
UNREPORTED
Response Effort
MODERATE
Recovery
USER
Value Density
DIFFUSE
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Automatable
NO
User Interaction
ACTIVE
Product Confidentiality
HIGH
Product Integrity
HIGH
Product Availability
HIGH
Privileges Required
NONE
Subsequent Confidentiality
NONE
Subsequent Integrity
NONE
Subsequent Availability
NONE
Description
Palo Alto Networks incorporated the following Chromium security fixes into our products:
- https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html
- https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop_26.html
- https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop_19.html
- https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop_12.html
- https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop.html
| CVE | Summary |
|---|---|
| CVE-2025-8576 | Use after free in Extensions |
| CVE-2025-8577 | Inappropriate implementation in Picture In Picture |
| CVE-2025-8578 | Use after free in Cast |
| CVE-2025-8579 | Inappropriate implementation in Picture In Picture |
| CVE-2025-8580 | Inappropriate implementation in Filesystems |
| CVE-2025-8581 | Inappropriate implementation in Extensions |
| CVE-2025-8582 | Insufficient validation of untrusted input in Core |
| CVE-2025-8583 | Inappropriate implementation in Permissions |
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| Prisma Access Browser | < 139.12.4.128 | >= 139.12.4.128 |
Required Configuration for Exposure
No special configuration is required to be affected by this issue.
Severity: MEDIUM, Suggested Urgency: MODERATE
CVSS-BT: 6.1 / CVSS-B: 8.6 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber)
Exploitation Status
Palo Alto Networks is not aware of any malicious exploitation of this issue.
Solution
| CVE | Prisma Access Browser |
|---|---|
| CVE-2025-8576 | 139.12.4.128 |
| CVE-2025-8577 | 139.12.4.128 |
| CVE-2025-8578 | 139.12.4.128 |
| CVE-2025-8579 | 139.12.4.128 |
| CVE-2025-8580 | 139.12.4.128 |
| CVE-2025-8581 | 139.12.4.128 |
| CVE-2025-8582 | 139.12.4.128 |
| CVE-2025-8583 | 139.12.4.128 |
Workarounds and Mitigations
No workaround or mitigation is available.
CPE Applicability
- cpe:2.3:a:palo_alto_networks:prisma_access_browser:*:*:*:*:*:*:*:* is vulnerable from (including)139.12.4 and up to (excluding)139.12.4.128
Timeline
Initial publication