What is CVE-2026-16781?

CVE-2026-16781 is SVG File Parsing Stack Exhaustion Vulnerability in Autodesk 3ds Max. The supplied enrichment data classifies it as Denial of Service mapped to CWE-674 CWE-674.

Which versions are affected?

Affected product and version evidence is listed in the product table above. Current public advisories should be checked for exact version scope before patch targeting is finalized.

Is there active exploitation?

Active exploitation is not confirmed from current sources for CVE-2026-16781. If exploitation is not confirmed from current sources, teams should document that status and continue monitoring KEV, vendor, and telemetry updates.

No. CVE-2026-16781 is not listed in CISA KEV in the supplied enrichment data. KEV status should be monitored because it can change after initial disclosure or after exploitation becomes publicly confirmed.

Is there a public exploit?

7 public PoC repositories reported; 0 marked weaponized in current dataset. Public exploit or PoC availability should raise triage priority, especially for exposed or business-critical systems.

How can defenders detect it?

Start with Not reported where available. Look for vulnerability-class behavior, product errors, suspicious authentication events, exploit probes, and abnormal process activity based only on evidence that applies to the affected product.

How should teams prioritize it?

Prioritize CVE-2026-16781 using CVSS 5.5, EPSS 0%, KEV status, public PoC status, and asset exposure. Internet-facing, privileged, or business-critical deployments should be handled first.

Are workarounds available?

The supplied mitigation guidance says to apply vendor patches and restrict external exposure until fixed. Fixed-version evidence is listed in the mitigation section above.

Which threat actors are linked publicly?

No public threat actor linkage is confirmed from current sources. Do not attribute exploitation to a threat actor unless the source evidence explicitly supports that linkage.

What should be done in the next 24 hours?

Identify exposed assets running affected vendor/product/version combinations. Prioritize based on EPSS, PoC availability, and external exposure. Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class. Open remediation tickets with affected assets, owners, evidence status, and detection coverage so decisions are traceable.

mediumDenial of Servicepublic exploit

CVE-2026-16781

CVE-2026-16781 — SVG File Parsing Stack Exhaustion Vulnerability in Autodesk 3ds Max

A maliciously crafted SVG file, when parsed through Autodesk 3ds Max, can trigger an Uncontrolled Recursion vulnerability. A malicious actor may leverage this vulnerability to cause the application to terminate unexpectedly, resulting in a denial-of-service.

Published Aug 24, 2026Updated Aug 24, 2026Sources: NVD, Autodesk (CNA), GitHub, GitHub Security Advisory, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Exploit code

public exploit, none observed

EPSS

ahead of 0% of scored CVEs

Affects

Autodesk

2 products listed

CVSS base

5.5

medium

Remediation

The vendor's own words where we have them.

Upgrade 3ds Max to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

Identify exposed assets running affected vendor/product/version combinations.
Prioritize based on EPSS, PoC availability, and external exposure.
Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

Vendor	Product	Versions	Status
Autodesk	3ds Max	2027.0.0 to < 2027.2.0	Vulnerable
Autodesk	3ds Max	2026.0.0 to < 2026.3.4	Vulnerable

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Availability

High

Confidentiality

None

Integrity

None

Scope

Unchanged

Attack Complexity

Low

Attack Vector

Local

Privileges Req

None

User Interaction

Required

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
5.5	CVSS 3.1	medium	1.8	3.6	NVD, Autodesk (CNA), GHSA

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

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-674 · Uncontrolled Recursion

DoS: Resource Consumption (CPU)
DoS: Resource Consumption (Memory)
Read Application Data

Mitigation: Ensure an end condition will be reached under all logic conditions. The end condition may include testing against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.

Weakness & attack patterns

CWE-674

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

CAPEC-231 · Oversized Serialized Data PayloadsCAPEC-230 · XML Nested Payloads

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Repositories

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

Monitor for scanner or exploit-pattern traffic after 7 public PoC repositories were reported.

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

2026
Added · CVSS 3.1 5.5 (AV:L)
Aug 24, 2026 · NVD
Initial · CVE published
Aug 24, 2026 · NVD
Added · GHSA-gwqj-2wfr-ppm7 published (medium)
Aug 24, 2026 · GitHub Security Advisory

References

4 on the record

www.autodesk.com/products/autodesk-access/overview
Vendor Advisory
www.autodesk.com/trust/security-advisories/adsk-sa-2026-0014
Vendor Advisory
nvd.nist.gov/vuln/detail/CVE-2026-16781
NVD
github.com/advisories/GHSA-gwqj-2wfr-ppm7
Exploit, Third Party Advisory

Elsewhere on this site

Autodeskevery CVE for this vendor
Denial of Servicesame class
CWE-674other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record1

What should defenders know first?

CVE-2026-16781 is SVG File Parsing Stack Exhaustion Vulnerability in Autodesk 3ds Max, a medium vulnerability affecting 3ds Max from Autodesk. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-16781. Public exploit evidence is: 7 public PoC repositories reported; 0 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 5.5 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.