Remote Code Execution in Qualcomm Multi-Mode Call Processor PLMN Selection Handling
CVE-2025-27034 is a critical memory corruption vulnerability in a Qualcomm closed-source component, described as occurring while selecting a Public Land Mobile Network (PLMN) from the Steering of Roaming (SoR) failed list. The available context indicates the flaw is in Qualcomm's Multi-Mode Call Processor / modem firmware and is triggered when malformed PLMN selection responses are processed. The root cause is reported as improper validation of array indices, leading to out-of-bounds memory corruption during PLMN selection handling. Because the vulnerable code executes in the modem/baseband processing path, exploitation can occur remotely via crafted network-originated messages and does not require user interaction.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical memory corruption vulnerability in Qualcomm's Multi-Mode Call Processor during PLMN selection from the Steering of Roaming failed list, allowing remote code execution without user interaction.
Unknown (listed as a trending/high-risk CVE associated with Qualcomm; no technical details provided in the content).
A critical vulnerability in a Qualcomm closed-source component affecting Android devices, details provided by Qualcomm.
A critical vulnerability in a Qualcomm closed-source component affecting Android devices, details provided by Qualcomm.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.