Upstream information

CVE-2026-48111 at MITRE

Description

7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parser(CPP/7zip/Archive/UefiHandler.cpp). The function validates an attacker-controlled opcode byte using > instead of >= against the element count of the 10-entry kExpressionCommands static array, allowing an opcode value of 10 to read one pointer slot (8 bytes on x64) past the end of the array in .rodata. The out-of-bounds value is then dereferenced as a const char * and passed through strlen and memcpy into the archive's Characts property, which may cause either a denial of service (access violation when the adjacent bytes do not form a valid readable pointer) or a minor information disclosure of an adjacent .rdata string literal into archive metadata. The vulnerability is reached automatically during IInArchive::Open() via the call path OpenFv/OpenCapsule -> ParseVolume -> ParseSections when processing a SECTION_DXE_DEPEX (0x13) or SECTION_PEI_DEPEX (0x1B) section whose first body byte is 0x0A, and the UEFI handler is enabled by default in stock 7z.dll with signature-based detection for both UEFIc and UEFIf formats. The outcome (crash vs. silent leak) is deterministic per build but linker-layout dependent, with no write primitive and no disclosure of heap data, secrets, or ASLR base addresses. Version 26.01 fixes the issue.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having low severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database SUSE
Base Score 4.3 7.1 3.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector Network Network Local
Attack Complexity Low Low Low
Privileges Required None None None
User Interaction Required Required Required
Scope Unchanged Unchanged Unchanged
Confidentiality Impact None Low None
Integrity Impact None None None
Availability Impact Low High Low
CVSSv3 Version 3.1 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 4.6
Vector CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Attack Vector Local
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Active
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1267863 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Desktop 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise High Performance Computing 15 SP7
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • 7zip >= 26.01-150400.9.6.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • 7zip >= 26.01-150400.9.6.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP7 7zip In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 7zip In progress
SUSE Linux Enterprise Server 15 SP7 7zip In progress
SUSE Linux Enterprise Server 16.0 7zip Affected
SUSE Linux Enterprise Server 16.1 7zip Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 7zip In progress
SUSE Linux Enterprise Server for SAP applications 16.0 7zip Affected
SUSE Linux Enterprise Server for SAP applications 16.1 7zip Affected
openSUSE Leap 16.0 7zip Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP4-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP5-LTSS 7zip In progress
SUSE Linux Enterprise Server 15 SP6-LTSS 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 7zip In progress
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS 7zip In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 7zip In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 7zip In progress
openSUSE Leap 15.6 7zip Affected

SUSE Timeline for this CVE

CVE page created: Fri Jun 5 20:02:23 2026
CVE page last modified: Tue Jun 16 15:25:51 2026