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NVD / CVE Program· CNA Linux

CVE-2026-45921: mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0f5e62ea5c43146eacdc6861cb1022ffae1b79bc, 971e9c53aed82f17a9c6a65daa4e21cc15eba5b1, 980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0f5e62ea5c43146eacdc6861cb1022ffae1b79bc, 971e9c53aed82f17a9c6a65daa4e21cc15eba5b1, 980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b 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

In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse() The function mtd_parser_tplink_safeloader_parse() allocates buf via mtd_parser_tplink_safeloader_read_table(). If the allocation for parts[idx].name fails inside the loop, the code jumps to the err_free label without freeing buf, leading to a memory leak. Fix this by freeing the temporary buffer buf in the err_free label. Compile tested only. Issue found using a prototype static analysis tool and code review.

Published
May 27, 2026
Updated
Jun 24, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2026-45921

When you'll hear from us

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  • 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
linuxlinux kernel

Versions reported by the vendor

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

  • Linux Linux

    • 6.2affected
    • 00a3588084bee6f37bb2b1d343f96900cfe049bc and later · before 0f5e62ea5c43146eacdc6861cb1022ffae1b79bcaffected · git
    • 00a3588084bee6f37bb2b1d343f96900cfe049bc and later · before e97f5fac8ce9a6b9ec724c97d86b0985e915fdcaaffected · git
    • 00a3588084bee6f37bb2b1d343f96900cfe049bc and later · before ec121ad626c319085f6d40a52cd04e99b4554926affected · git
    • 00a3588084bee6f37bb2b1d343f96900cfe049bc and later · before 971e9c53aed82f17a9c6a65daa4e21cc15eba5b1affected · git
    • 00a3588084bee6f37bb2b1d343f96900cfe049bc and later · before 980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8baffected · git
    • before 6.2not affected · semver
    • 6.6.128 and later · up to and including 6.6.*not affected · semver
    • 6.12.75 and later · up to and including 6.12.*not affected · semver
    • 6.18.14 and later · up to and including 6.18.*not affected · semver
Affected versions · NVD (4)

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

  • linux linux kernel6.2 and later · before 6.6.128
  • linux linux kernel6.7 and later · before 6.12.75
  • linux linux kernel6.13 and later · before 6.18.14
  • linux linux kernel6.19 and later · before 6.19.4

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.18.14-16.18.14-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-45916May 27, 2026 · power: supply: sbs-battery: Fix use-after-free in power_supply_changed()
    31Monitor
  • ← EarlierCVE-2026-45918May 27, 2026 · ovpn: tcp - don't deref NULL sk_socket member after tcp_close()
    22Monitor
  • Later →CVE-2026-45924May 27, 2026 · ksmbd: call ksmbd_vfs_kern_path_end_removing() on some error paths
    22Monitor

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
Linux Linux0f5e62ea5c43146eacdc6861cb1022ffae1b79bcVendor (CNA)
Linux Linux971e9c53aed82f17a9c6a65daa4e21cc15eba5b1Vendor (CNA)
Linux Linux980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8bVendor (CNA)
Linux Linuxe97f5fac8ce9a6b9ec724c97d86b0985e915fdcaVendor (CNA)
Linux Linuxec121ad626c319085f6d40a52cd04e99b4554926Vendor (CNA)
debian:linux6.12.85-1 · Debian:13Package 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.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (4 more)

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

All records