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CVE Record

CVE-2025-7545: GNU Binutils objcopy.c copy_section heap-based overflow

A vulnerability classified as problematic was found in GNU Binutils 2.45. Affected by this vulnerability is the function copy_section of the file binutils/objcopy.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The patch is named 08c3cbe5926e4d355b5cb70bbec2b1eeb40c2944. It is recommended to apply a patch to fix this issue.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-7545 is a heap-based buffer overflow in GNU Binutils 2.45, affecting objcopy section copying. It requires local access, so internet-facing exposure is not indicated. Business urgency is highest where build systems, developer machines, or automation process untrusted binaries.

Executive priority

Prioritize remediation for build infrastructure and developer environments that process files from users, suppliers, researchers, or external repositories. Lower urgency is reasonable for isolated systems that do not run Binutils 2.45 or do not process untrusted binaries.

Technical view

The issue is reported in binutils/objcopy.c copy_section and maps to CWE-119 and CWE-122. CVSS 3.1 is 5.3 with local attack vector, low complexity, low privileges, no user interaction, and limited confidentiality, integrity, and availability impact. A patch commit is identified as 08c3cbe5926e4d355b5cb70bbec2b1eeb40c2944.

Likely exposure

Exposure is most likely on systems running GNU Binutils 2.45, especially CI, packaging, reverse-engineering, embedded build, or developer environments using objcopy. The provided bundle does not prove broad downstream product exposure or internet-facing impact.

Exploitation context

The source bundle says local attack is required and a public exploit has been disclosed. It does not show CISA KEV listing or confirmed active exploitation. Treat public proof-of-concept availability as a reason to prioritize environments handling untrusted binary inputs.

Researcher notes

Evidence supports a local heap overflow in objcopy copy_section for GNU Binutils 2.45, with public exploit disclosure and an upstream patch reference. The bundle does not provide exploit reliability, affected distributions, fixed release numbers, or confirmed exploitation in the wild.

Mitigation direction

  • Apply the GNU Binutils patch identified in the sources.
  • Update Binutils through trusted OS or toolchain packages when available.
  • Restrict processing of untrusted binaries on affected build systems.
  • Monitor GNU, distro, and vendor advisories for fixed package versions.

Validation and detection

  • Inventory systems and containers for GNU Binutils 2.45.
  • Confirm whether objcopy is used in CI, packaging, or developer workflows.
  • Check package changelogs for patch commit 08c3cbe5926e4d355b5cb70bbec2b1eeb40c2944.
  • Review vendor advisories before assuming downstream product impact.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-119: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-122: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-7545 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

4CVSS vectors
6Timeline events
2ADP providers
10Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

4 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C1.83.4VulDB
5.3CVSS 3.0MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C1.83.4VulDB
4.8CVSS 4.0MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P——VulDB
4.3CVSS 2.0MediumAV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C3.16.4VulDB

Vulnerability scoring details

Base CVSS 4.0 score

4.8Medium
CVSS 4.0 vector shape for CVE-2025-7545Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineVulDB

    Advisory disclosed

  2. Source timelineVulDB

    VulDB entry created

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timelineVulDB

    VulDB entry last update

  5. CVE publishedCVE Program

    The CVE record was published.

  6. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GNUBinutils2.45Listed
Weakness

CWE details

CWE-119CWE-122

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-119 · source CWE mapping

Improper Restriction of Operations within the Bounds of a Memory Buffer

Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-122 · source CWE mapping

Heap-based Buffer Overflow

Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs