Threats / Qualcomm / CVE-2023-33107
CVE-2023-33107
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Qualcomm Multiple Chipsets vulnerability
Multiple Qualcomm chipsets contain an integer overflow vulnerability in Graphics Linux during shared virtual memory region assignment via IOCTL calls, enabling memory corruption.
Verdict
Today item — known-exploited.
Integer overflow in memory handling allows local attackers to corrupt kernel memory and potentially escalate privileges or cause denial of service on affected Qualcomm chipset-based devices.
CISA KEV Yes · 2023-12-055EPSS 0.00892 (verify live)6Exploit Public PoC7CVSS 8.43CISA SSVC Exploitation: active · Automatable: no · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
5 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-12-05).
Probability (EPSS)
EPSS 0.00892 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 8.4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: Qualcomm, Multiple Chipsets. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-190 Integer Overflow — weakness family: Memory safety.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog the same day the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
Gain local code execution access to a device running affected Qualcomm chipsets.
Business
Device compromise enables unauthorized access to sensitive data and system functions.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Trigger integer overflow during IOCTL shared virtual memory assignment to corrupt kernel memory structures.
Business
Memory corruption destabilizes system integrity and creates exploitation pathways for privilege escalation.
3
Lateral reach — past segmentation narrative 3
Attacker
Escalate privileges from user-level to kernel-level access through corrupted memory state.
Business
Full system compromise allows attacker to bypass security controls and maintain persistent access.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05