Trending
CVE-2020-9819

CVE detail

CVE-2020-9819

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.

CVSS 4.3 · MediumBuzz score 36.9KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 36.9

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 6.9 · diversity 5.0 · KEV 25.0 · OTX 0.0 · PoC 0.0

Mention score

6.9

1 evidence mentions in the snapshot

Diversity score

5.0

1 sources across 1 categories

KEV score

25.0

Known exploited vulnerability present

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: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

1 source links · newest first

1st June – Threat Intelligence BulletinCheck Point Research
For the latest discoveries in cyber research for the week of 1st June 2020, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The US NSA has warned that Russia’s Sandworm APT group, an arm of Russian military intelligence, has been exploiting a vulnerability in the Exim mail traffic agent since August of last […]
vendorresearch.checkpoint.comJun 1, 2020, 1:55 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

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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-2020-9819.

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:ipadosSearch this product on Shodan
cpe:2.3:o:apple:iphone_osSearch this product on Shodan
cpe:2.3:o:apple:watchosSearch this product on Shodan

Exact CVE query

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Metadata

Canonical fields

NVD status

Unavailable

Published

Jun 9, 2020

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

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

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): Required. Another user must take an action for exploitation to succeed.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): None. There is no direct impact to this security property.
Integrity Impact (I): None. There is no direct impact to this security property.
Availability Impact (A): Low. There is a limited impact to this security property.

Signals

Exploitation indicators

1 stored signals · KEV present · 0 OTX pulses

KEVKEV
- cwes: CWE-787
- dueDate: 2022-05-03
- knownRansomwareCampaignUse: Unknown
- notes: https://nvd.nist.gov/vuln/detail/CVE-2020-9819
- product: iOS, iPadOS, and watchOS
- requiredAction: Apply updates per vendor instructions.
- shortDescription: Apple iOS, iPadOS, and watchOS Mail contains a memory corruption vulnerability that may allow heap corruption when processing a maliciously crafted mail message.
- vendorProject: Apple
- vulnerabilityName: Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability
Observed Nov 3, 2021, 12:00 AM