CVE-2026-63279— Out of bounds read in PICT image import
Quick assessment
Affected
The Document Foundation LibreOffice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| The Document Foundation | LibreOffice | 26.2< < 26.2.5 |
affected |
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I. Basic Information for CVE-2026-63279
Vulnerability Information
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Vulnerability Title
Out of bounds read in PICT image import
Source: CVE Program / CVE List V5
Vulnerability Description
LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the palette has, so an index past the last entry read memory outside the palette. In fixed versions the palette index is limited to the entries present.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| The Document Foundation | LibreOffice | 26.2 ~ < 26.2.5 | - |
|
II. Public POCs for CVE-2026-63279
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-63279 (1)
Same Patch Batch · The Document Foundation · 2026-09-22 · 7 CVEs total
| CVE-2026-63278 | 6.7 MEDIUM | Package URLs can be used to exfiltrate arbitrary INI file values and environment variables |
| CVE-2026-63272 | 5.4 MEDIUM | Heap buffer overflow in WMF text record import |
| CVE-2026-63274 | 5.4 MEDIUM | Heap buffer overflow in PDF import stream handling |
| CVE-2026-63273 | 5.4 MEDIUM | Heap buffer overflow in PDF import encryption handling |
| CVE-2026-63276 | 5.4 MEDIUM | Stack buffer overflow in CFF to Type 1 font conversion |
| CVE-2026-63275 | 5.4 MEDIUM | Stack buffer overflow in CFF font hint handling |
IV. Related Vulnerabilities
Same product: LibreOffice
-
CVE-2026-63278
Package URLs can be used to exfiltrate arbitrary INI file va -
CVE-2026-63276
Stack buffer overflow in CFF to Type 1 font conversion -
CVE-2026-63275
Stack buffer overflow in CFF font hint handling -
CVE-2026-63274
Heap buffer overflow in PDF import stream handling -
CVE-2026-63273
Heap buffer overflow in PDF import encryption handling
Same vendor: The Document Foundation
-
CVE-2026-63278
Package URLs can be used to exfiltrate arbitrary INI file va -
CVE-2026-63276
Stack buffer overflow in CFF to Type 1 font conversion -
CVE-2026-63275
Stack buffer overflow in CFF font hint handling -
CVE-2026-63274
Heap buffer overflow in PDF import stream handling -
CVE-2026-63273
Heap buffer overflow in PDF import encryption handling
V. Comments for CVE-2026-63279
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