Vulnerability details
CVE-2026-41476
deskflow deskflow
Deskflow: clipboard deserialization global-buffer-overflow
CVSS 4.0
7.4High
Official description
Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard update. The issue is in the implementation of src/lib/deskflow/IClipboard.cpp. This is reachable because ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp validates only the outer clipboard transfer size. It does not validate the internal structure of the serialized clipboard blob, so malformed inner lengths reach IClipboard::unmarshall() unchanged. This vulnerability is fixed in 1.26.0.138.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.4High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| deskflow | deskflow | < 1.26.0.138 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/deskflow/deskflow/security/advisories/GHSA-3jp5-g964-cgmh x_refsource_CONFIRM
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Details
- Published
- 2026-04-24
- Last updated
- 2026-04-24
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.34%
Probability of exploitation in 30 days
28%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')