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CVE-2026-102010· NVD / CVE Program· CNA redhat

Gcc-toolset-15-gcc: gcc: gcc-toolset-16: gcc: denial of service via use-after-free in binary heap erase_if

A flaw was found in GCC. When an application calls the erase_if function on a binary heap priority queue in libstdc++, the library reallocates storage but fails to update its internal entry pointer. An attacker capable of triggering this operation can exploit this use-after-free condition, leading to a Denial of Service (DoS) via an application crash or potential memory corruption.

HighCVSS 7.0 · v3.1—No exploit No fix recorded

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Published
Sep 28, 2026
Updated
Sep 30, 2026
EPSS
0.2% · 8th percentile
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.0
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.

Affected systems

—

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

    • all versionsaffected
    • all versionsaffected
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected
    • all versionsaffected
    • all versionsaffected
    • all versionsunknown
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Hardened Images

    • 13.5.0-0.2.hum1 and laternot affected · rpm
    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected
    • all versionsaffected

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
    42Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor
  • CVE-2025-4404Freeipa: idm: privilege escalation from host to domain admin in freeipa
    37Monitor
  • CVE-2025-7493Freeipa: idm: privilege escalation from host to domain admin in freeipa
    36Monitor
  • CVE-2025-49796Libxml: type confusion leads to denial of service (dos)
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

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-2025-49794469 days apartLibxml: heap use after free (uaf) leads to denial of service (dos)
    36Monitor
  • CVE-2026-34001158 days apartXorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and potential memory corruption
    31Monitor
  • CVE-2026-42014104 days apartGnutls: gnutls: use-after-free in gnutls_pkcs11_token_set_pin
    26Monitor
  • CVE-2025-10911368 days apartLibxslt: use-after-free with key data stored cross-rvt
    22Monitor

Chain candidates

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

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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.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-825 · Expired Pointer Dereference

CVSS vector

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

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

Change log

  1. SSVC exploitation— → none

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

References

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

All records