Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability

Published 20 Sep 2026, 03:01 UTC. Updated 21 Sep 2026, 10:18 UTC.

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. — Known ransomware use: Unknown

Directly affected

No company is named in this report.

Indirectly affected

NVDA NVIDIA
Chip makers and their suppliers move when export rules or Taiwan risk changes
TSM Taiwan Semiconductor
The main advanced-chip manufacturer sits in Taiwan
ASML ASML
Chipmaking-equipment sales follow export rules
AVGO Broadcom
Chip makers and their suppliers move when export rules or Taiwan risk changes
AMD AMD
Chip makers and their suppliers move when export rules or Taiwan risk changes
AMAT Applied Materials
Chip-equipment makers feel export controls
LRCX Lam Research
Chip-equipment makers feel export controls
SMH VanEck Semiconductor
A fund of semiconductor companies
SOXX iShares Semiconductor
A fund of semiconductor companies
QQQ Invesco QQQ
Big tech moves with chip-supply risk

Price reaction, T-5 to T+3

Ticker	T-5	T-3	T-1	T0	T+1	T+2	T+3
NVDA	—	—	—	—	—	—	—
TSM	—	—	—	—	—	—	—
ASML	—	—	—	—	—	—	—
AVGO	—	—	—	—	—	—	—
AMD	—	—	—	—	—	—	—
AMAT	—	—	—	—	—	—	—
LRCX	—	—	—	—	—	—	—
SMH	—	—	—	—	—	—	—
SOXX	—	—	—	—	—	—	—
QQQ	—	—	—	—	—	—	—

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Foll…

Source: CISA Known Exploited Vulnerabilities

Check Point Software Technologies (CHKP) compared with technology stocks (XLK) since 20 Sep 2026

Since the first closing price after “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” Check Point Software Technologies (CHKP) is +3.46%. The S&P 500 fund (SPY) is -0.89% over the same days, a +4.36% difference versus the market. technology stocks (XLK) is +3.17%, a +0.30% difference versus that group of stocks.

CHKP

SPY

XLK

Filings that name Check Point Software Technologies (CHKP) around 20 Sep 2026

Kevin Hern sell Progress Software (PRGS) ($15,001 - $50,000). That is 20 days before publication, inside 30 days. The filing is listed beside the story “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability.”

Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).

Companies in semiconductors around Check Point Software Technologies (CHKP)

Companies tied to this story

CHKP Check Point Software Technologies
In “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” Check Point Software Technologies (CHKP) is linked, with no stored direction, medium confidence. Reason on file: GA selected CHKP as a RELATED security because its canonical security name directly matches this event's themes: software, check. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
CIBR First Tr Exchange-Traded Fd
For “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” First Tr Exchange-Traded Fd (CIBR) is linked, with no stored direction, medium confidence. Reason on file: Material cyber incidents can change cybersecurity spending and risk expectations
HACK Amplify Cybersecurity Etf
Amplify Cybersecurity Etf (HACK) is linked, with no stored direction, medium confidence in the 20 Sep 2026 story “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability.” Reason on file: Material cyber incidents can change cybersecurity spending and risk expectations
CGNT Cognyte Software
For “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” Cognyte Software (CGNT) is linked, with no stored direction, medium confidence. Reason on file: GA selected CGNT as a RELATED security because its canonical security name directly matches this event's themes: software. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
GWRE Guidewire Software
Guidewire Software (GWRE) is linked, with no stored direction, medium confidence in the 20 Sep 2026 story “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability.” Reason on file: GA selected GWRE as a RELATED security because its canonical security name directly matches this event's themes: software. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
U Unity Software
For “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” Unity Software (U) is linked, with no stored direction, medium confidence. Reason on file: GA selected U as a RELATED security because its canonical security name directly matches this event's themes: software. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
HUBC Hub Cyber Security
Hub Cyber Security (HUBC) is linked, with no stored direction, medium confidence in the 20 Sep 2026 story “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability.” Reason on file: GA selected HUBC as a RELATED security because its canonical security name directly matches this event's themes: cyber. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
PRGS Progress Software
For “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability,” Progress Software (PRGS) is linked, with no stored direction, medium confidence. Reason on file: GA selected PRGS as a RELATED security because its canonical security name directly matches this event's themes: software. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

How semiconductors news reaches Check Point Software Technologies (CHKP)

The 20 Sep 2026 story “Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability” names Check Point Software Technologies (CHKP) because of Semiconductors.

The link for Check Point Software Technologies (CHKP) is this: GA selected CHKP as a RELATED security because its canonical security name directly matches this event's themes: software, check. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

First Tr Exchange-Traded Fd (CIBR) is here too. Its reason reads: Material cyber incidents can change cybersecurity spending and risk expectations

Price levels for Check Point Software Technologies (CHKP)

CHKP traded between 125.75 and 141.65 across 20 sessions. The latest close on file is 138.94. CIBR traded between 98.09 and 110.59 across 20 sessions. The latest close on file is 99.91. HACK traded between 115.90 and 131.37 across 20 sessions. The latest close on file is 118.03.

The semiconductors score for Check Point Software Technologies (CHKP)

46 out of 100

“Linux · Kernel · CVE-2025-39682: Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability” scores 46 out of 100. The score uses 1 sources, and 8 linked companies.