Cyber Resilience

CVE-2024-21466

Memory Safety in Qualcomm Fastconnect 7800 Firmware

Published
01 July 2024
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
EPSS Score 0.0021 12th percentile
Risk Priority 49 floored blend · peak EPSS

Summary

CVE-2024-21466 is a medium-severity Wrap or Wraparound (CWE-191) vulnerability in Qualcomm Fastconnect 7800 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 12th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Information disclosure while parsing sub-IE length during new IE generation.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-33068Same product: Qualcomm Fastconnect 7800
CVE-2023-21630Same product: Qualcomm Qca6574
CVE-2023-43553Same product: Qualcomm Fastconnect 7800
CVE-2023-43552Same product: Qualcomm Fastconnect 7800
CVE-2025-21437Same product: Qualcomm Qam8255P
CVE-2025-21442Same product: Qualcomm Qam8255P
CVE-2024-33039Same product: Qualcomm Qam8255P
CVE-2024-33063Same product: Qualcomm Fastconnect 7800
CVE-2024-23383Same product: Qualcomm Fastconnect 7800
CVE-2024-23381Same product: Qualcomm Fastconnect 7800

Affected Assets

qualcomm
fastconnect 7800 firmware
all versions
qualcomm
immersive home 3210 platform firmware
all versions
qualcomm
immersive home 326 platform firmware
all versions
qualcomm
ipq5300 firmware
all versions
qualcomm
ipq5302 firmware
all versions
qualcomm
ipq5312 firmware
all versions
qualcomm
ipq5332 firmware
all versions
qualcomm
ipq9008 firmware
all versions
qualcomm
ipq9554 firmware
all versions
qualcomm
ipq9570 firmware
all versions
+54 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and static/dynamic analysis directly find integer underflow defects before code is released.

Security engineering principles require use of safe arithmetic constructs or language features that structurally eliminate integer underflow during subtraction.

Input validation can reject or sanitize values that would cause a subtraction to underflow the representable range.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 full match
prevents

Secure SDLC practices directly prevent integer underflow defects via input validation, bounds checking, and static analysis.

ID.RA-01 partial match
prevents

Vulnerability scanning and code analysis can surface underflow flaws after they are introduced.

PR.PS-02 partial match
prevents

Routine patching can remediate known underflow bugs once they are discovered in deployed software.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches integer underflow defects before release.

prevents

Secure development lifecycle mandates input validation and arithmetic checks that prevent integer underflow.

prevents

Application security requirements include bounds checking and safe arithmetic to avoid underflow conditions.

prevents

Secure architecture principles require defensive coding patterns that mitigate integer wraparound risks.

prevents

Secure coding standards directly prescribe safe integer handling and overflow/underflow prevention.

References