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NVD / CVE Program· CNA redhat

CVE-2026-12912: Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

Noroxi assessment

Priority: Monitor (action score 29/100)

  • 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: 0.43% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: azl3 libtiff 4.6.0-13 on Azure Linux 3.0 4.6.0-14.

Low priority for now. Upgrade to azl3 libtiff 4.6.0-13 on Azure Linux 3.0 4.6.0-14 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

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

HighCVSS 7.3 · v3.1—No exploit Fix available
Published
Jun 29, 2026
Updated
Oct 15, 2026
EPSS
0.4% · 37th percentile

Report tools

JSON

Action score

29

Monitor

Low priority for now.

CVSS
29 / 40 · 7.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.3
NVD has not scored this yet; the score shown is the CNA’s.

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-2026-12912

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
enterprise linux10.2
enterprise linux eus10.0
enterprise linux8
rhel aus8.4
rhel eus long life8.4
rhel aus8.6
rhel eus long life8.6
rhel tus8.8
rhel e4s8.8
enterprise linux9
rhel e4s9.2
rhel e4s9.4

and 4 more

Versions reported by the vendor

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

  • Red Hat Red Hat Enterprise Linux 10

    • 0:4.6.0-8.el10_2.4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

    • 0:4.6.0-6.el10_0.4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

    • 0:3.9.4-12.el7_9.3 and laternot affected · rpm
    • 0:4.0.3-35.el7_9.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8

    • 0:3.9.4-16.el8_10 and laternot affected · rpm
    • 0:4.0.9-38.el8_10 and laternot affected · rpm
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

    • 0:3.9.4-13.el8_4.3 and laternot affected · rpm
    • 0:4.0.9-18.el8_4.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

    • 0:3.9.4-13.el8_4.3 and laternot affected · rpm
    • 0:4.0.9-18.el8_4.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

    • 0:3.9.4-13.el8_6.3 and laternot affected · rpm
    • 0:4.0.9-21.el8_6.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

    • 0:3.9.4-13.el8_6.3 and laternot affected · rpm
    • 0:4.0.9-21.el8_6.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service

    • 0:3.9.4-13.el8_8.3 and laternot affected · rpm
    • 0:4.0.9-29.el8_8.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

    • 0:3.9.4-13.el8_8.3 and laternot affected · rpm
    • 0:4.0.9-29.el8_8.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:4.4.0-18.el9_8.1 and laternot affected · rpm

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10libtiffbefore 4.6.0-8.el10_2.44.6.0-8.el10_2.4
AlmaLinux:10libtiff-develbefore 4.6.0-8.el10_2.44.6.0-8.el10_2.4
AlmaLinux:10libtiff-toolsbefore 4.6.0-8.el10_2.44.6.0-8.el10_2.4
AlmaLinux:8compat-libtiff3before 3.9.4-16.el8_103.9.4-16.el8_10
AlmaLinux:8libtiffbefore 4.0.9-38.el8_104.0.9-38.el8_10
AlmaLinux:8libtiff-develbefore 4.0.9-38.el8_104.0.9-38.el8_10
AlmaLinux:8libtiff-toolsbefore 4.0.9-38.el8_104.0.9-38.el8_10
AlmaLinux:9libtiffbefore 4.4.0-18.el9_8.14.4.0-18.el9_8.1
AlmaLinux:9libtiff-develbefore 4.4.0-18.el9_8.14.4.0-18.el9_8.1
AlmaLinux:9libtiff-toolsbefore 4.4.0-18.el9_8.14.4.0-18.el9_8.1
Debian:12tifffrom 0—
Debian:13tiffbefore 4.7.0-3+deb13u34.7.0-3+deb13u3
Debian:14tiffbefore 4.7.2-14.7.2-1
openSUSE:Leap 16.0tiffbefore 4.7.2-160000.1.14.7.2-160000.1.1
openSUSE:Leap 16.0tiff-manbefore 4.7.2-160000.1.14.7.2-160000.1.1
openSUSE:Tumbleweedtiffbefore 4.7.2-1.14.7.2-1.1
Red Hat:enterprise_linux_eus:10.0libtiffbefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux_eus:10.0libtiff-debuginfobefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux_eus:10.0libtiff-debugsourcebefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux_eus:10.0libtiff-develbefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux_eus:10.0libtiff-toolsbefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux_eus:10.0libtiff-tools-debuginfobefore 0:4.6.0-6.el10_0.40:4.6.0-6.el10_0.4
Red Hat:enterprise_linux:10.2libtiffbefore 0:4.6.0-8.el10_2.40:4.6.0-8.el10_2.4
Red Hat:enterprise_linux:10.2libtiff-debuginfobefore 0:4.6.0-8.el10_2.40:4.6.0-8.el10_2.4

+57

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-3195Jun 19, 2026 · Qemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb (incomplete fix for cve-2024-7730)
    29Monitor
  • ← EarlierCVE-2026-3196Jun 19, 2026 · Qemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocation
    22Monitor
  • Later →CVE-2026-14164Jun 30, 2026 · Libarchive: double-free vulnerability in rar5 decompression logic via dangling filtered_buf pointer in init_unpack()
    30Monitor

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
azl3 libtiff 4.6.0-13 on Azure Linux 3.04.6.0-14 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:compat-libtiff33.9.4-16.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:libtiff4.6.0-8.el10_2.4 · AlmaLinux:10Package registry (OSV)
almalinux:libtiff-devel4.6.0-8.el10_2.4 · AlmaLinux:10Package registry (OSV)
almalinux:libtiff-tools4.6.0-8.el10_2.4 · AlmaLinux:10Package registry (OSV)
debian:tiff4.7.0-3+deb13u3 · Debian:13Package registry (OSV)
opensuse:tiff4.7.2-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:tiff-man4.7.2-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
red hat:compat-libtiff30:3.9.4-16.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:compat-libtiff3-debuginfo0:3.9.4-16.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:compat-libtiff3-debugsource0:3.9.4-16.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libtiff0:4.7.1-2.4.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libtiff-debuginfo0:4.6.0-8.el10_2.4 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:libtiff-debugsource0:4.6.0-8.el10_2.4 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:libtiff-devel0:4.6.0-8.el10_2.4 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:libtiff-devel0:4.7.1-2.4.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libtiff-static0:4.7.1-2.4.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libtiff-tools0:4.6.0-8.el10_2.4 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:libtiff-tools0:4.7.1-2.4.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libtiff-tools-debuginfo0:4.6.0-8.el10_2.4 · Red Hat:enterprise_linux:10.2Package registry (OSV)
rocky linux:compat-libtiff30:3.9.4-16.el8_10 · Rocky Linux:8Package registry (OSV)
rocky linux:libtiff0:4.6.0-8.el10_2.4 · Rocky Linux:10Package registry (OSV)
suse:tiff4.7.2-160000.1.1 · SUSE:Linux Micro 6.2Package 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-2026-5272014 days apartGstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb
    35Monitor
  • CVE-2026-8166567 days apartCorosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly
    30Monitor
  • CVE-2026-107161100 days apartCyrus-sasl: heap buffer overflow in cyrus-sasl add_to_challenge() allows malicious server to crash or compromise digest-md5 clients
    30Monitor
  • CVE-2026-319510 days apartQemu-kvm: virtio-snd: heap buffer overflow in virtio_snd_pcm_in_cb (incomplete fix for cve-2024-7730)
    29Monitor
  • CVE-2026-10324293 days apartRpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_filesignatures header tag
    28Monitor
  • CVE-2026-4891417 days apartQemu-kvm: heap buffer overflow in virtio-blk scsi request handling
    26Monitor

Chain candidates

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

  • CVE-2026-144768 days apartSssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass
    32Monitor

Bug bounty scope

No known public program.

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

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

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

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✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (19 more)

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

All records