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NVD / CVE Program· CNA VulnCheck

CVE-2026-58472: GNU Wget 1.25.0 Heap Buffer Overflow via HTML Attribute Encoding

Noroxi assessment

Priority: Monitor (action score 24/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.39% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. Special conditions such as timing or configuration are required.
  • Fixed version: wget (AlmaLinux:10) 1.24.5-8.el10_2; wget (AlmaLinux:8) 1.19.5-16.el8_10; wget (AlmaLinux:9) 1.21.1-11.el9_8.

Low priority for now. Upgrade to wget (AlmaLinux:10) 1.24.5-8.el10_2; wget (AlmaLinux:8) 1.19.5-16.el8_10; wget (AlmaLinux:9) 1.21.1-11.el9_8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase.

MediumCVSS 6.0 · v4.0—No exploit Fix available
Published
Jul 7, 2026
Updated
Oct 25, 2026
EPSS
0.3% · 33th percentile

Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
6.0
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-58472

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnuwget

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gnu wgetup to 1.25.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

  • gnuwget wget

    • dd692d9cea5335b181d877ae917fe6e75587a812not affected
    • up to and including 1.25.0affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10wgetbefore 1.24.5-8.el10_21.24.5-8.el10_2
AlmaLinux:8wgetbefore 1.19.5-16.el8_101.19.5-16.el8_10
AlmaLinux:9wgetbefore 1.21.1-11.el9_81.21.1-11.el9_8
Debian:12wgetfrom 0—
openSUSE:Leap 16.0wgetbefore 1.25.0-160000.3.11.25.0-160000.3.1
openSUSE:Tumbleweedwgetbefore 1.25.0-3.11.25.0-3.1
Red Hat:enterprise_linux:10.2wgetbefore 0:1.24.5-8.el10_20:1.24.5-8.el10_2
Red Hat:enterprise_linux:10.2wget-debuginfobefore 0:1.24.5-8.el10_20:1.24.5-8.el10_2
Red Hat:enterprise_linux:10.2wget-debugsourcebefore 0:1.24.5-8.el10_20:1.24.5-8.el10_2
Red Hat:enterprise_linux:8::appstreamwgetbefore 0:1.19.5-16.el8_100:1.19.5-16.el8_10
Red Hat:enterprise_linux:8::appstreamwget-debuginfobefore 0:1.19.5-16.el8_100:1.19.5-16.el8_10
Red Hat:enterprise_linux:8::appstreamwget-debugsourcebefore 0:1.19.5-16.el8_100:1.19.5-16.el8_10
Red Hat:enterprise_linux:9::appstreamwgetbefore 0:1.21.1-11.el9_80:1.21.1-11.el9_8
Red Hat:enterprise_linux:9::appstreamwget-debuginfobefore 0:1.21.1-11.el9_80:1.21.1-11.el9_8
Red Hat:enterprise_linux:9::appstreamwget-debugsourcebefore 0:1.21.1-11.el9_80:1.21.1-11.el9_8
Rocky Linux:10wgetbefore 0:1.24.5-8.el10_20:1.24.5-8.el10_2
Rocky Linux:8wgetbefore 0:1.19.5-16.el8_100:1.19.5-16.el8_10
Rocky Linux:9wgetbefore 0:1.21.1-11.el9_80:1.21.1-11.el9_8
SUSE:Linux Enterprise Micro 5.5wgetbefore 1.20.3-150000.3.34.11.20.3-150000.3.34.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7wgetbefore 1.24.5-150700.3.3.11.24.5-150700.3.3.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5wgetbefore 1.14-21.28.11.14-21.28.1
SUSE:Linux Micro 6.0wgetbefore 1.24.5-3.11.24.5-3.1
SUSE:Linux Micro 6.1wgetbefore 1.24.5-slfo.1.1_4.11.24.5-slfo.1.1_4.1
SUSE:Linux Micro 6.2wgetbefore 1.25.0-160000.3.11.25.0-160000.3.1

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-13089GNU Wget: stack overflow in HTTP protocol handling
    59Plan
  • CVE-2016-4971GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted FTP resource.
    49Plan
  • CVE-2014-4877Absolute path traversal vulnerability in GNU Wget before 1.16, when recursion is enabled, allows remote FTP servers to write to arbitrary fi
    49Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-58470Jul 7, 2026 · GNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing
    27Monitor
  • ← EarlierCVE-2026-58471Jul 7, 2026 · GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c
    24Monitor
  • Later →CVE-2026-16599Aug 25, 2026 · Denial of Service in GNU wget
    20Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:wget1.24.5-8.el10_2 · AlmaLinux:10Package registry (OSV)
opensuse:wget1.25.0-3.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:wget0:1.24.5-8.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:wget-debuginfo0:1.24.5-8.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:wget-debugsource0:1.24.5-8.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
rocky linux:wget0:1.24.5-8.el10_2 · Rocky Linux:10Package registry (OSV)
suse:wget1.24.5-3.1 · SUSE:Linux Micro 6.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-584700 days apartGNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing
    27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
P
Scope
X

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records