CVE-2018-3976
An exploitable out-of-bounds write exists in the CALS Raster file format-parsing functionality of Canvas Draw version 5.0.0.28.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An exploitable out-of-bounds write exists in the CALS Raster file format-parsing functionality of Canvas Draw version 5.0.0.28. A specially crafted CAL image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a CAL image to trigger this vulnerability and gain code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.85% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- canvasgfx/canvas draw
- Source
- talos-cna@cisco.com
EPSS 1.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/106809Broken Link, Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0642Exploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/106809Broken Link, Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0642Exploit, Technical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.