CVE-2024-53021VulnerabilityPublished 3 Jun 2025

CVE-2024-53021: Qualcomm Snapdragon · Buffer Over-read

Affects Qualcomm SnapdragonSource CVE Database V5

Not known to be exploited · CVSS 8.2 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

8.2High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

Given the absence of publicly available patches at the time of disclosure, European organizations should implement a multi-layered mitigation approach. First, monitor Qualcomm and device manufacturers for timely security updates and apply patches as soon as they become available. In the interim, network-level mitigations can reduce exposure: deploy intrusion detection and prevention systems (IDS/IPS) to monitor and block suspicious RTCP traffic, especially malformed goodbye RTCP packets. Network segmentation and strict access controls should limit exposure of vulnerable devices to untrusted networks. Organizations should also enforce strong wireless network security protocols (e.g., WPA3) to reduce the risk of unauthorized network access. Device inventory and asset management processes must identify all affected Qualcomm Snapdragon-based devices to prioritize risk assessment and remediation. For critical systems, consider temporary disabling or restricting RTCP traffic if feasible without impacting essential services. Additionally, implement endpoint detection and response (EDR) solutions to detect anomalous behaviors indicative of exploitation attempts. Finally, raise user and administrator awareness about the vulnerability and encourage reporting of unusual device or network activity.

Description

Information disclosure may occur while processing goodbye RTCP packet from network.

Impact

For European organizations, the impact of CVE-2024-53021 is significant due to the widespread use of Qualcomm Snapdragon chipsets in mobile devices, IoT deployments, and wireless communication equipment across the region. Confidentiality breaches resulting from this vulnerability could lead to unauthorized disclosure of sensitive corporate data, user credentials, or intellectual property. Enterprises relying on mobile workforce devices or embedded systems with affected Snapdragon platforms may face risks of data leakage or espionage. Telecommunications providers and network operators using Qualcomm-based infrastructure components could experience exposure of network management or subscriber information. Additionally, sectors such as finance, healthcare, and critical infrastructure that depend on secure mobile communications and IoT devices may be particularly vulnerable. The vulnerability's remote exploitability without user interaction increases the likelihood of targeted attacks or mass exploitation campaigns. Although no known exploits are currently reported, the high severity and broad device impact necessitate urgent attention to prevent potential compromise and data breaches within European organizations.

CWE-126Buffer Over-read (opens in a new tab)
Variant weakness
The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

docs.qualcomm.com/product/publicresources/securitybulletin/june-2025-bulletin.html (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 3 Jul 2025, 17:44 UTC

WeaknessesCWE-126

Technical details

References

Community reviews

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