Key disclosure via permissive TCSR register access
Published Apr 7, 2025 · Updated Apr 7, 2025
Improper register access control in Qualcomm Snapdragon TZ firmware allows local users to read cryptographic key data from TCSR. The access-control configuration for the TCSR memory-mapped register interface permits Linux to read registers that should remain confined to the trusted execution environment. Local low-privileged code execution is required, and the reported consequence is disclosure of cryptographic key material without modification or service interruption.
Summary
What happened
Improper register access control in Qualcomm Snapdragon TZ firmware allows local users to read cryptographic key data from TCSR. The access-control configuration for the TCSR memory-mapped register interface permits Linux to read registers that should remain confined to the trusted execution environment. Local low-privileged code execution is required, and the reported consequence is disclosure of cryptographic key material without modification or service interruption.
The record
- CVE
- CVE-2024-45556
- Published
- Apr 7, 2025
- Updated
- Apr 7, 2025
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-1262, CAPEC-680, T1552.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 7, 2025CVE publishedPublication date reported by the CVE source.
- Apr 7, 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?
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- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=Immersive Home 3210 Platform
- Affected versionversion=Immersive Home 326 Platform
- Affected versionversion=IPQ5300
- Affected versionversion=IPQ5302
- Affected versionversion=IPQ5312
- Affected versionversion=IPQ5332
- Affected versionversion=IPQ9008
- Affected versionversion=IPQ9048
- Affected versionversion=IPQ9554
- Affected versionversion=IPQ9570
- Affected versionversion=IPQ9574
- Affected versionversion=QCA0000
- Affected versionversion=QCA8075
- Affected versionversion=QCA8081
- Affected versionversion=QCA8082
- Affected versionversion=QCA8084
- Affected versionversion=QCA8085
- Affected versionversion=QCA8386
- Affected versionversion=QCF8000
- Affected versionversion=QCF8000SFP
- Affected versionversion=QCF8001
- Affected versionversion=QCN5124
- Affected versionversion=QCN6224
- Affected versionversion=QCN6402
- Affected versionversion=QCN6412
- Affected versionversion=QCN6422
- Affected versionversion=QCN6432
- Affected versionversion=QCN9000
- Affected versionversion=QCN9012
- Affected versionversion=QCN9013
- Affected versionversion=QCN9024
- Affected versionversion=QCN9074
- Affected versionversion=QCN9160
- Affected versionversion=QCN9274
- Affected versionversion=QXM8083
- Affected versionversion=SD 8 Gen1 5G
- Affected versionversion=SDM429W
- Affected versionversion=SDX65M
- Affected versionversion=Snapdragon 429 Mobile Platform
- Affected versionversion=Snapdragon AR1 Gen 1 Platform
- Affected versionversion=Snapdragon AR1 Gen 1 Platform "Luna1"
- Affected versionversion=Snapdragon AR2 Gen 1 Platform
- Affected versionversion=Snapdragon Wear 4100+ Platform
- Affected versionversion=Snapdragon X65 5G Modem-RF System
- Affected versionversion=SSG2115P
- Affected versionversion=SSG2125P
- Affected versionversion=SXR1230P
- Affected versionversion=SXR2230P
- Affected versionversion=SXR2250P
- Affected versionversion=WCD9380
- Affected versionversion=WCD9385
- Affected versionversion=WCN3620
- Affected versionversion=WCN3660B
- Affected versionversion=WCN3680B
- Affected versionversion=WCN3980
- Affected versionversion=WSA8830
- Affected versionversion=WSA8832
- Affected versionversion=WSA8835
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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