Answer in brief
CVE-2026-46037 records a Unknown severity vulnerability in ipv4: icmp: validate reply type before using icmp_pointers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-46037 records a Unknown severity vulnerability in ipv4: icmp: validate reply type before using icmp_pointers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <93df2af4f491de33827550b9d420f01808c0706b || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <92e7c209036dcc0e8ffdf806fdfd3645b263bea5 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <bc64a66e0b9ad937d3d49934242ee62b01ba9a94 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <c2178ff1c70ebfc2ab9651b230c58a34683db759 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <67bf002a2d7387a6312138210d0bd06e3cf4879b | b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99, 93df2af4f491de33827550b9d420f01808c0706b, 92e7c209036dcc0e8ffdf806fdfd3645b263bea5, bc64a66e0b9ad937d3d49934242ee62b01ba9a94, c2178ff1c70ebfc2ab9651b230c58a34683db759, d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1, 67bf002a2d7387a6312138210d0bd06e3cf4879b |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <93df2af4f491de33827550b9d420f01808c0706b || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <92e7c209036dcc0e8ffdf806fdfd3645b263bea5 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <bc64a66e0b9ad937d3d49934242ee62b01ba9a94 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <c2178ff1c70ebfc2ab9651b230c58a34683db759 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 || >=d329ea5bd8845f0b196bf41b18b6173340d6e0e4 <67bf002a2d7387a6312138210d0bd06e3cf4879b | b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99, 93df2af4f491de33827550b9d420f01808c0706b, 92e7c209036dcc0e8ffdf806fdfd3645b263bea5, bc64a66e0b9ad937d3d49934242ee62b01ba9a94, c2178ff1c70ebfc2ab9651b230c58a34683db759, d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1, 67bf002a2d7387a6312138210d0bd06e3cf4879b |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.
Quoted source text, attributed separately from HOL analysis.