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CVE-2026-4046

The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9746762576ec90d28d9ef1b265f7024234805f0e141cc1bbf89e01404e994274
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 6 assertions

{"defaultStatus":"unaffected","product":"glibc","vendor":"The GNU C Library","versions":[{"lessThanOrEqual":"2.43","status":"affected","version":"2.3.3","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/1

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/2

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/3

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/4

Affected products and versions

6 source assertions
{"defaultStatus":"unaffected","product":"glibc","vendor":"The GNU C Library","versions":[{"lessThanOrEqual":"2.43","status":"affected","version":"2.3.3","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/1
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/2
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/3
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"V3.1.6","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/affected/4

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-617","description":"CWE-617 Reachable assertion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/adp/1/references/0
{"tags":["mailing-list"],"url":"https://inbox.sourceware.org/libc-announce/76814edf-cf7f-47ec-979d-2dce0a2c76bf@gotplt.org/T/#u"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/references/2
{"tags":["issue-tracking"],"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=33980"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0007;hb=HEAD"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d43b033eb89d2c4c2097af85c415ce75517822243ab90dd087fd18b646acc39f · sha256:3300d0d3eca1d35e… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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