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  4. CVE 2026 77153 ibm i is affected by missing authorization
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Back to active CVEs
Medium · CVSS 4.8CVE-2026-77153

IBM i is Affected By Missing Authorization Vulnerability in Host-Based Printer Subsystem []CVE-2026-77153

Answer in brief

CVE-2026-77153 records a Medium severity (CVSS 4.8) vulnerability in IBM i is Affected By Missing Authorization Vulnerability in Host-Based Printer Subsystem []. The current sources do not mark it as known exploited. The current feed maps IBM/i (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 8, 2026Updated Nov 8, 2026Source checked Nov 8, 2026First seen by HOL Nov 8, 2026Material review Nov 8, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps IBM/i (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
IBM/igeneric7.6 || 7.5 || 7.4 || 7.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for IBM/i.
  2. 2Review the reported fix. Source-reported solution: When using Access Client Solutions (ACS) to create Telnet printer sessions, version 1.1.9.15 or later must be installed for interoperability after applying the Host-Based Printer Subsystem PTFs.  Failure to update to a compatible ACS application version will result in being unable to connect via telnet for printing. The current version of the ACS application can be viewed by clicking the 'About' link under the 'Help' tab in ACS. View each PTF's cover letter for the additional actions required prior to installation. IBM i Release5770-SS1  PTF Number(s)PTF Download Link(s)7.6SJ11502 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11502 7.5SJ11523 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11523 7.4SJ11524 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11524 7.3SJ11522 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11522 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Evidence timeline and material changes

  1. Published upstream

    Nov 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 8, 2026

Sources and claim methodology

  • Source referenceibm.com
Upstream source description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote unauthenticated attacker to obtain sensitive information from the Host-Based Printer Subsystem due to no authorization check. A bad actor could use this vulnerability to print files they should not be able to access.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Multiple vulnerabilities in IBM watsonx Orchestrate with watsonx Assistant CartridgeAlso CWE-862

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862
Source
CVE List V5
Source checked
Nov 8, 2026
References
1 linked source
Open source record