CVE-2025-27041

Q: What is the severity of CVE-2025-27041?

CVE-2025-27041 has a CVSS score of 5.5 (MEDIUM). This vulnerability allows an attacker to cause a temporary denial of service (DoS) by sending specially crafted video packets to affected Qualcomm devices. The issue occurs during video packet processing in firmware, potentially disrupting video functionality. This affects devices using Qualcomm chipsets with vulnerable video firmware.

5.5 MEDIUM

Denial of Service

📋 TL;DR

This vulnerability allows an attacker to cause a temporary denial of service (DoS) by sending specially crafted video packets to affected Qualcomm devices. The issue occurs during video packet processing in firmware, potentially disrupting video functionality. This affects devices using Qualcomm chipsets with vulnerable video firmware.

💻 Affected Systems

Products:

Qualcomm chipsets with video processing capabilities

Versions: Specific versions not publicly detailed; refer to Qualcomm advisory for chipset-specific information

Operating Systems: Android, Linux-based systems using Qualcomm chipsets

Default Config Vulnerable: ⚠️ Yes

Notes: Affects devices with Qualcomm video firmware; exact chipset models listed in Qualcomm's October 2025 security bulletin

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete disruption of video processing capabilities, requiring device reboot to restore functionality.

🟠

Likely Case

Temporary video playback or capture disruption until the system recovers or is restarted.

🟢

If Mitigated

Minimal impact with proper network segmentation and input validation in place.

🌐 Internet-Facing: LOW - Requires direct access to video processing interfaces which are typically not internet-exposed.

🏢 Internal Only: MEDIUM - Could be exploited by malicious internal actors or compromised internal systems.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires ability to send malformed video packets to the vulnerable firmware component

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Qualcomm's October 2025 security bulletin for specific chipset firmware versions

Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html

Restart Required: No

Instructions:

1. Check Qualcomm advisory for affected chipset models. 2. Contact device manufacturer for firmware updates. 3. Apply firmware patches provided by OEM. 4. Verify patch installation through version checks.

🔧 Temporary Workarounds

Network segmentation

all

Isolate devices from untrusted networks to prevent malicious packet injection

Input validation

all

Implement additional validation layers for video packet processing

🧯 If You Can't Patch

Implement strict network access controls to limit who can send video packets
Monitor for abnormal video processing behavior and implement alerting

🔍 How to Verify

Check if Vulnerable:

Check chipset version and compare against Qualcomm's affected products list in the October 2025 bulletin

Check Version:

Device-specific commands vary by manufacturer; typically available through device settings or manufacturer diagnostic tools

Verify Fix Applied:

Verify firmware version matches or exceeds patched versions listed in Qualcomm advisory

📡 Detection & Monitoring

Log Indicators:

Video processing errors
Firmware crash logs
Unexpected video subsystem restarts

Network Indicators:

Unusual video packet patterns
High volume of malformed video data

SIEM Query:

Search for 'video firmware error' OR 'video processing crash' in device logs

📊 Metadata

CVE ID: CVE-2025-27041

CVSS v3 Score: 5.5 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE: CWE-126

EPSS Score: 0.02% exploit probability (5.2th percentile)

Published: October 9, 2025

Last Updated: November 5, 2025

🔗 References

https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html Vendor Advisory

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Ar8035 Firmware by Qualcomm

Fastconnect 6900 Firmware by Qualcomm

Fastconnect 7800 Firmware by Qualcomm

Qca6174a Firmware by Qualcomm

Qca6574au Firmware by Qualcomm

Qca6584au Firmware by Qualcomm

Qca6595au Firmware by Qualcomm

Qca6678aq Firmware by Qualcomm

Qca6688aq Firmware by Qualcomm

Qca6696 Firmware by Qualcomm

Qca6698aq Firmware by Qualcomm

Qca8081 Firmware by Qualcomm

Qca8337 Firmware by Qualcomm

Qca9367 Firmware by Qualcomm

Qca9377 Firmware by Qualcomm

Qcc710 Firmware by Qualcomm

Qcm6490 Firmware by Qualcomm

Qcn6224 Firmware by Qualcomm

Qcn6274 Firmware by Qualcomm

Qcs410 Firmware by Qualcomm

Qcs610 Firmware by Qualcomm

Qcs6490 Firmware by Qualcomm

Qfw7114 Firmware by Qualcomm

Qfw7124 Firmware by Qualcomm

Sa6145p Firmware by Qualcomm

Sa6150p Firmware by Qualcomm

Sa6155p Firmware by Qualcomm

Sa8145p Firmware by Qualcomm

Sa8150p Firmware by Qualcomm

Sa8155p Firmware by Qualcomm

Sa8195p Firmware by Qualcomm

Sd660 Firmware by Qualcomm

Sg4150p Firmware by Qualcomm

Snapdragon 660 Mobile Platform Firmware by Qualcomm

Snapdragon 680 4g Mobile Platform Firmware by Qualcomm

Snapdragon 685 4g Mobile Platform \(sm6225 Ad\) Firmware by Qualcomm

Snapdragon 888 5g Mobile Platform Firmware by Qualcomm

Snapdragon 888\+ 5g Mobile Platform \(sm8350 Ac\) Firmware by Qualcomm

Snapdragon Auto 5g Modem Rf Gen 2 Firmware by Qualcomm

Snapdragon X72 5g Modem Rf System Firmware by Qualcomm

Snapdragon X75 5g Modem Rf System Firmware by Qualcomm

Sw5100 Firmware by Qualcomm

Sw5100p Firmware by Qualcomm

Sxr2230p Firmware by Qualcomm

Sxr2250p Firmware by Qualcomm

Video Collaboration Vc1 Platform Firmware by Qualcomm

Video Collaboration Vc3 Platform Firmware by Qualcomm

Wcd9335 Firmware by Qualcomm

Wcd9340 Firmware by Qualcomm

Wcd9341 Firmware by Qualcomm

Wcd9370 Firmware by Qualcomm

Wcd9375 Firmware by Qualcomm

Wcd9380 Firmware by Qualcomm

Wcd9385 Firmware by Qualcomm

Wcn3950 Firmware by Qualcomm

Wcn3980 Firmware by Qualcomm

Wcn3988 Firmware by Qualcomm

Wcn3990 Firmware by Qualcomm

Wsa8810 Firmware by Qualcomm

Wsa8815 Firmware by Qualcomm

Wsa8830 Firmware by Qualcomm

Wsa8832 Firmware by Qualcomm

Wsa8835 Firmware by Qualcomm