An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data…
Priority HIGH 73CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory or cause a denial of service.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00752 55th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2020-19726
- 2026-10-03 Alias added: GHSA-r7qv-f5p4-f3qr
References
More GNU Binutils vulnerabilities
- TI-2025-42907 GNU Binutils thru 2.46 readelf contains a double free vulnerability when processing a… CVSS 3.1HIGH 7.5
- TI-2025-41071 An issue was discovered in function d_print_comp_inner in file cp-demangle.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2025-41069 An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2025-41068 A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2021-21105 Heap-based Buffer Overflow in function bfd_getl32 in Binutils objdump 3.37. CVSS 3.1HIGH 7.5
- TI-2020-17948 GNU Binutils before 2.34 has an uninitialized-heap vulnerability in function… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-19726 · CVE Program
- CVE-2020-19726 · NVD
- FIRST EPSS
- GHSA-r7qv-f5p4-f3qr · GitHub Advisory Database · CC BY 4.0
- CVE-2020-19726 · Red Hat security data · CC BY 4.0
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