CVE
Trimble SketchUp remote code execution in SKP file parsing
Affects Trimble SketchUp, triggered when a victim visits a malicious page or opens a malicious SKP file. Fixed in SketchUp 2027.0.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in SketchUp 2027.0
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Victim must visit a malicious page or open a malicious SKP file in Trimble SketchUp
- Last modified
- Whether it needs action now or is a reference record, by fixed rules, with why. Last checked is when cve.now last re-read it.What do these mean? →
- Reference
- Last checked
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.20% · 10th percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 13/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Trimble SketchUp is affected by a use-after-free flaw in how it parses SKP files. An attacker who gets a user to open a malicious file or visit a malicious page can run arbitrary code, but only locally on the victim's machine, so the attack requires user interaction.
Read the original description
Trimble SketchUp SKP File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of SKP files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30421.
Who should check
Teams running Trimble SketchUp, especially those who open SKP files from untrusted sources or visit untrusted pages
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure5/25Specific setups only
- Reach?/20Unknown. No tracked technology or package matched
- Severity7.8/10CVSS 7.8
- No patch0/5No signal
What would change the score
- Would score about 63 if added to CISA KEV
- Would score about 58 if CISA's SSVC rates exploitation active
- Would score about 23 if CISA's SSVC rates it automatable
What to do
Check whether your setup matches what the bug needs.
Victim must visit a malicious page or open a malicious SKP file in Trimble SketchUpUpgrade to a fixed version: SketchUp 2027.0.
Check your systems with an agent
Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.
Check whether my systems are affected by CVE-2026-121741 (Trimble SketchUp SKP File Parsing Use-After-Free Remote Code Execution Vulnerability), 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-2026-121741 (entry last updated 2026-11-12):
Affected:
- Trimble SketchUp: versions 26.1.252
Fixed versions: SketchUp 2027.0.
Conditions (all must be true for the bug to be hit):
- Victim must visit a malicious page or open a malicious SKP file in Trimble SketchUp (source: https://www.zerodayinitiative.com/advisories/ZDI-26-893/)
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-2026-121741 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-121741 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.zerodayinitiative.com/advisories/ZDI-26-893/
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-2026-121741
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-121741"}.Timeline
- CVE published
- First seen by cve.now
Affected versions
- Trimble SketchUp
26.1.252
Evidence 3
CVE record · 2
Establishes: The identifier and description.
- Record
- Record
Other links · 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-121741
Is CVE-2026-121741 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: cve.now feed data
What does this mean?
A use-after-free flaw in how SketchUp parses SKP files can let an attacker run code in the context of the current SketchUp process. The victim must visit a malicious page or open a malicious SKP file.Source: zerodayinitiative.com
Which versions are affected by CVE-2026-121741?
SketchUp: version 26.1.252.Source: cve.now feed data
Am I affected, and how do I check?
The sources do not list affected version ranges for Trimble SketchUp. To check, compare the installed SketchUp version with the fixed version, SketchUp 2027.0.Source: zerodayinitiative.com
How do I fix CVE-2026-121741?
Upgrade to SketchUp 2027.0, which is the listed fixed version. No workaround is listed in the sources.Source: zerodayinitiative.com
Why do the sources disagree?
The description says the attack needs a remote vector, since the victim must visit a malicious page or open a malicious file. The CVSS vector marks the attack vector as local (AV:L). The sources do not resolve this difference.Source: zerodayinitiative.com