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NVD / CVE Program· CNA CyberArk

CVE-2025-0518: Unchecked sscanf return value which leads to memory data leak

Noroxi assessment

Priority: Monitor (action score 19/100)

  • 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: 0.37% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No special conditions are required; it is repeatable.
  • Fixed version: ffmpeg (Debian:11) 7:4.3.8-0+deb11u3; ffmpeg (Debian:12) 7:5.1.7-0+deb12u1; ffmpeg (Debian:13) 7:7.1.1-1.

Low priority for now. Upgrade to ffmpeg (Debian:11) 7:4.3.8-0+deb11u3; ffmpeg (Debian:12) 7:5.1.7-0+deb12u1; ffmpeg (Debian:13) 7:7.1.1-1 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

Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows Read Sensitive Constants Within an Executable. This vulnerability is associated with program files https://github.Com/FFmpeg/FFmpeg/blob/master/libavfilter/af_pan.C . This issue affects FFmpeg: 7.1. Issue was fixed:  https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a This issue was discovered by: Simcha Kosman

MediumCVSS 4.8 · v4.0—No exploit Fix available
Published
Jan 16, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 31th percentile

Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 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 · CyberArk
4.8
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/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-2025-0518

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
ffmpegffmpeg

Affected versions

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

  • ffmpeg ffmpeg7.1

Versions reported by the vendor

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

  • FFmpeg FFmpeg

    • 7.1affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:11ffmpegbefore 7:4.3.8-0+deb11u37:4.3.8-0+deb11u3
Debian:12ffmpegbefore 7:5.1.7-0+deb12u17:5.1.7-0+deb12u1
Debian:13ffmpegbefore 7:7.1.1-17:7.1.1-1
openSUSE:Leap 15.6ffmpegbefore 3.4.2-150200.11.60.13.4.2-150200.11.60.1
openSUSE:Leap 15.6ffmpeg-4before 4.4.5-150600.13.16.14.4.5-150600.13.16.1
openSUSE:Tumbleweedffmpeg-4before 4.4.5-3.14.4.5-3.1
openSUSE:Tumbleweedffmpeg-6before 6.1.2-3.16.1.2-3.1
openSUSE:Tumbleweedffmpeg-7before 7.1-3.17.1-3.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSffmpeg-4before 4.4.5-150400.3.46.14.4.5-150400.3.46.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP6ffmpegbefore 3.4.2-150200.11.60.13.4.2-150200.11.60.1
SUSE:Linux Enterprise Module for Package Hub 15 SP6ffmpeg-4before 4.4.5-150600.13.16.14.4.5-150600.13.16.1

Same product

ffmpeg: all records

Other highest-scoring records for the same primary product.

  • CVE-2009-4637FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors that trigger
    45Plan
  • CVE-2016-10190Heap-based buffer overflow in libavformat/http.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 all
    42Plan
  • CVE-2009-4634Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a craf
    42Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-6604Jan 6, 2025 · Ffmpeg: hls xbin demuxer dos amplification in ffmpeg
    21Monitor
  • ← EarlierCVE-2023-6605Jan 6, 2025 · Ffmpeg: dash playlist ssrf vulnerability in ffmpeg
    28Monitor
  • Later →CVE-2025-1373Feb 17, 2025 · FFmpeg MOV Parser mov.c mov_read_trak null pointer dereference
    19Monitor

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
debian:ffmpeg7:5.1.7-0+deb12u1 · Debian:12Package registry (OSV)
opensuse:ffmpeg3.4.2-150200.11.60.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:ffmpeg-44.4.5-150600.13.16.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:ffmpeg-66.1.2-3.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-77.1-3.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:ffmpeg3.4.2-150200.11.60.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP6Package registry (OSV)
suse:ffmpeg-44.4.5-150600.13.16.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP6Package 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.

No credits in the CNA record.

Variant candidates

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

  • CVE-2024-3536748 days apartFFmpeg n6.1.1 has an Out-of-bounds Read via libavcodec/ppc/vp8dsp_altivec.c, static const vec_s8 h_subpel_filters_outer
    36Monitor
  • CVE-2023-51791272 days apartBuffer Overflow vulenrability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavcodec/jpegxl_pa
    31Monitor
  • CVE-2026-30997452 days apartAn out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to cause a Denial of Servi
    30Monitor
  • CVE-2023-46407447 days apartFFmpeg prior to commit bf814 was discovered to contain an out of bounds read via the dist->alphabet_size variable in the read_vlc_prefix() f
    22Monitor
  • CVE-2025-69693424 days apartOut-of-bounds read in FFmpeg 8.0 and 8.0.1 RV60 video decoder (libavcodec/rv60dec.c).
    21Monitor

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.
  • A low-privileged account is enough.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
A
Scope
X

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/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✗ → ✓

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

References

Show all references (1 more)

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

All records