Trending
CVE-2026-43793

CVE detail

CVE-2026-43793

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

CVSS 9.8 · CriticalBuzz score 26.1

Buzz score

Why this CVE is surfacing

Buzz score total 26.1

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 10.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

16.1

4 evidence mentions in the snapshot

Diversity score

10.0

2 sources across 2 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 4; within the 30d window
Peak daily: 3; highest bucket

Evidence

Source links by recency

Newest mentions first

4 source links · newest first

The July 2026 Apple Security Update ReviewZero Day Initiative
ation, we’re left to speculate on which of these bugs is the most severe. However, there are a couple that stand out. · CVE-2026-43818 (ImageIO) – This bug could allow the “Processing [of] a maliciously crafted image may lead to arbitrary code execution ." ImageIO is the classic zero-/one-click remote surface on Apple platforms (images auto-parsed in M
vendorwww.thezdi.comJul 30, 2026, 2:00 PM
https://support.apple.com/en-us/128072support.apple.com
No excerpt available.
Vendor Advisorysupport.apple.comJul 27, 2026, 9:17 PM
https://support.apple.com/en-us/128071support.apple.com
No excerpt available.
Vendor Advisorysupport.apple.comJul 27, 2026, 9:17 PM
https://support.apple.com/en-us/128067support.apple.com
No excerpt available.
Vendor Advisorysupport.apple.comJul 27, 2026, 9:17 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-43813
A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. A mal…
CVSS 7.1 · High
6 mentions
CVE-2026-43777
This issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A remote attacker may be able to cause…
CVSS 7.5 · High
4 mentions
CVE-2026-43714
The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, visionOS 26…
CVSS 5.5 · Medium
7 mentions
CVE-2026-7755
IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow remote code execution due to incomplete validation enforcement on MCP server configuration files.
CVSS 8.8 · High
1 mention
CVE-2026-48353
CAI Content Credentials is affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to ac…
CVSS 5.5 · Medium
1 mention
CVE-2026-48352
CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerabili…
CVSS 7.5 · High
1 mention

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-43793.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:o:apple:macosSearch this product on Shodan

Exact CVE query

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Metadata

Canonical fields

NVD status

Analyzed

Published

Jul 27, 2026

Modified

Jul 28, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses