Transient modem service interruption via buffer over-read
Published Feb 3, 2025 · Updated Feb 3, 2025
Buffer over-read in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service via a malformed registration accept message. The Multi-Mode Call Processor reads beyond the intended buffer when an over-the-air registration accept message contains incorrect ciphering-key data. No authentication or user interaction is required, and the documented consequence is transient modem service interruption rather than data disclosure or modification.
Summary
What happened
Buffer over-read in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt service via a malformed registration accept message. The Multi-Mode Call Processor reads beyond the intended buffer when an over-the-air registration accept message contains incorrect ciphering-key data. No authentication or user interaction is required, and the documented consequence is transient modem service interruption rather than data disclosure or modification.
The record
- CVE
- CVE-2024-38404
- Published
- Feb 3, 2025
- Updated
- Feb 3, 2025
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-126, CWE-125, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 3, 2025CVE publishedPublication date reported by the CVE source.
- Feb 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=AR8035
- Affected versionversion=FastConnect 7800
- Affected versionversion=QCA6584AU
- Affected versionversion=QCA6698AQ
- Affected versionversion=QCA8081
- Affected versionversion=QCA8337
- Affected versionversion=QCC710
- Affected versionversion=QCN6224
- Affected versionversion=QCN6274
- Affected versionversion=QFW7114
- Affected versionversion=QFW7124
- Affected versionversion=SDM429W
- Affected versionversion=SDX80M
- Affected versionversion=SM7675
- Affected versionversion=SM7675P
- Affected versionversion=SM8635
- Affected versionversion=SM8635P
- Affected versionversion=Snapdragon 429 Mobile Platform
- Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
- Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
- Affected versionversion=Snapdragon Wear 4100+ Platform
- Affected versionversion=Snapdragon X72 5G Modem-RF System
- Affected versionversion=Snapdragon X75 5G Modem-RF System
- Affected versionversion=WCD9340
- Affected versionversion=WCD9370
- Affected versionversion=WCD9375
- Affected versionversion=WCD9390
- Affected versionversion=WCD9395
- Affected versionversion=WCN3610
- Affected versionversion=WCN3620
- Affected versionversion=WCN3660B
- Affected versionversion=WCN3680B
- Affected versionversion=WCN3980
- Affected versionversion=WCN6755
- Affected versionversion=WSA8830
- Affected versionversion=WSA8832
- Affected versionversion=WSA8835
- Affected versionversion=WSA8840
- Affected versionversion=WSA8845
- Affected versionversion=WSA8845H
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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