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CVE.org (no NVD analysis yet)· CNA redhat

CVE-2026-115456: Gcc: out-of-bounds read in std::from_chars

LowCVSS 3.7 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 14/100)

  • 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: 0.31% (FIRST EPSS).
  • 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.
  • Fixed version: gcc13 (openSUSE:Tumbleweed) 13.5.0+git10516-3.1; gcc14 (openSUSE:Tumbleweed) 14.4.0+git12698-2.1; gcc15 (openSUSE:Tumbleweed) 15.3.0+git11272-4.1.

Low priority for now. Upgrade to gcc13 (openSUSE:Tumbleweed) 13.5.0+git10516-3.1; gcc14 (openSUSE:Tumbleweed) 14.4.0+git12698-2.1; gcc15 (openSUSE:Tumbleweed) 15.3.0+git11272-4.1 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

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

Published
Oct 30, 2026
Updated
Nov 13, 2026
EPSS
0.3% · 24th percentile

Report tools

JSON

Action score

14

Monitor

Low priority for now.

CVSS
14 / 40 · 3.7 / 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 · redhat
3.7
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-2026-115456

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.

—

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

    • 0:15.2.1-8.2.el10_3 and laternot affected · rpm
    • 0:16.2.1-1.4.el10_3 and laternot affected · rpm
    • 0:14.4.1-5.el10_3 and laternot affected · rpm
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • 0:15.2.1-7.3.el8_10 and laternot affected · rpm
    • all versionsunknown
    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 9

    • 0:11.5.0-17.el9_9 and laternot affected · rpm
    • 0:15.2.1-7.4.el9_9 and laternot affected · rpm
    • 0:16.2.1-1.4.el9_9 and laternot affected · rpm
    • 0:11.5.0-17.el9_9 and laternot affected · rpm
    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat Hardened Images

    • 16.2.1-3.2.hum1 and laternot affected · rpm
    • all versionsaffected

  • Red Hat Red Hat OpenShift AI (RHOAI)

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

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat OpenShift Container Platform 5

    • all versionsunknown

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12gcc-11from 0—
Debian:12gcc-12from 0—
Debian:13gcc-13from 0—
Debian:13gcc-14from 0—
Debian:14gcc-15from 0—
Debian:14gcc-16from 0—
openSUSE:Tumbleweedgcc13before 13.5.0+git10516-3.113.5.0+git10516-3.1
openSUSE:Tumbleweedgcc14before 14.4.0+git12698-2.114.4.0+git12698-2.1
openSUSE:Tumbleweedgcc15before 15.3.0+git11272-4.115.3.0+git11272-4.1
openSUSE:Tumbleweedgcc16before 16.2.1+git9901-1.116.2.1+git9901-1.1

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-2026-114691Oct 30, 2026 · Gcc: integer wrap in `std
    23Monitor
  • ← EarlierCVE-2026-115455Oct 30, 2026 · Gcc: stack overflow in std::bitset on libstdc++
    26Monitor
  • Later →CVE-2026-119528Oct 30, 2026 · Gimp: gimp: stack buffer overflow in psd image resource header loader
    31Monitor

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
opensuse:gcc1313.5.0+git10516-3.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:gcc1414.4.0+git12698-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:gcc1515.3.0+git11272-4.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:gcc1616.2.1+git9901-1.1 · openSUSE:TumbleweedPackage 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.

  1. Published
  2. Fix recorded+11 d
  3. TodayNov 13, 2026+14 d
EPSS, last 120 days

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

Variant candidates

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

  • CVE-2025-49796501 days apartLibxml: type confusion leads to denial of service (dos)
    36Monitor
  • CVE-2026-11961010 days apartGstreamer1-plugins-good: gstreamer1-plugins-good: out-of-bounds heap read in mtap16/mtap24 h.264 rtp depayloader via signed/unsigned underflow
    32Monitor
  • CVE-2026-34003190 days apartXorg: xwayland: x.org x server: information exposure and denial of service via out-of-bounds memory access
    31Monitor
  • CVE-2026-1154847 days apartOpen-iscsi: open-iscsi: dhcpv4 option parser heap out-of-bounds read in iscsiuio parse_msg
    30Monitor
  • CVE-2026-12571211 days apartGst-plugins-base: gst-plugins-base: missing bounds checks in rtcp sdes packet parsing
    30Monitor
  • CVE-2026-8523445 days apartTftp: tftp-hpa: denial of service due to out-of-bounds read/write in remap engine
    30Monitor

Not on record for this CVE: patch commit or PR link · researcher credit · public bounty program.

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
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

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✗ → ✓
  2. SSVC exploitation— → none
  3. Exploit maturity— → none

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

References

Show all references (9 more)

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

All records