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Flaws added in November 2026

From Exploited flaws, HARD’s guide to the flaws being used in attacks · Updated
This article lists the flaws CISA added in November 2026. For the newest, see Exploited flaws.

So far in November 2026, CISA added 3 flaws to its list of vulnerabilities being used in attacks, 2 of them in things people have at home. Most came from SonicWall (1), Apple (1) and WordPress (1).[1]

One of the three let an attacker take over the product, running their own code or taking full control.

List of flaws

Every flaw CISA added in November 2026, newest first, in plain English, each with an article of its own.[2]

1 added

CVEFlawFound
CVE-2026-19868At work SonicWall SonicOS SSLVPN. Attackers are using a flaw in SonicWall SonicOS SSLVPN. At work

1 added

CVEFlawFound
CVE-2024-27834At home Apple devices. Attackers can get into Apple devices without a valid password. At home

1 added

CVEFlawFound
CVE-2026-119977At home WordPress Core. Attackers can run their own code on WordPress Core from anywhere, without logging in. At home

Companies

The flaws were in three companies’ products; the most were in Apple’s (1).

CompanyFlawsRansomware
Apple1–
SonicWall1–
WordPress1–

Other months

Every month since CISA started the list; November 2026 is outlined.

Flaws added to CISA’s list each month
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 172826312123263143363 285
2025 142732152420201516311120 245
2024 2191010149141925172216 186
2023 5141817192416819181811 187
2022 40322264583483232412109 555
2021 29120 311
2026285 flaws
Jan17Feb28Mar26Apr31May21Jun23Jul26Aug31Sep43Oct36Nov3Dec
2025245 flaws
Jan14Feb27Mar32Apr15May24Jun20Jul20Aug15Sep16Oct31Nov11Dec20
2024186 flaws
Jan21Feb9Mar10Apr10May14Jun9Jul14Aug19Sep25Oct17Nov22Dec16
2023187 flaws
Jan5Feb14Mar18Apr17May19Jun24Jul16Aug8Sep19Oct18Nov18Dec11
2022555 flaws
Jan40Feb32Mar226Apr45May83Jun48Jul3Aug23Sep24Oct12Nov10Dec9
2021311 flaws
JanFebMarAprMayJunJulAugSepOctNov291Dec20

References

  1. ^ Cybersecurity and Infrastructure Security Agency. “Known Exploited Vulnerabilities Catalog”. Version 2026.11.06, updated 6 Nov 2026. CISA adds a flaw when it has reliable evidence of it being used in attacks; the date is when it was added, not when the attacks began.
  2. ^ HARD. Plain-English summaries written from CISA’s and NVD’s text, on each flaw’s page.

See also Exploited flaws, Companies, and Search for any app or company.