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CVE-2017-11774

Microsoft Outlook 2010 SP2, Outlook 2013 SP1 and RT SP1, and Outlook 2016 allow an attacker to execute arbitrary commands, due to how Microsoft Office handles objects in memory, aka "Microsoft Outlook Security Feature Bypass Vulnerability."

CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.5/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.8: +1.17
  • Fresh EPSS: 59.63%: +0.30

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 12 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

SOCRadar
Press · 22 Jan 2025, 08:00 · Dark Web Profile: OilRig (APT34) - SOCRadar
BleepingComputer
Press · 29 Jul 2024, 07:00 · New Specula tool uses Outlook for remote code execution in Windows - BleepingComputer
Middle East Institute
Press · 10 Feb 2023, 08:00 · Iranian APTs: An overview - Middle East Institute
Qualys
Press · 22 Feb 2022, 08:00 · Managing CISA Known Exploited Vulnerabilities with Qualys VMDR - Qualys
Tripwire
Press · 18 Dec 2020, 08:00 · VERT Alert: SolarWinds Supply Chain Attack - Tripwire
See all 12 source documents
Microsoft
Press · 18 Jun 2020, 07:00 · Inside Microsoft 365 Defender: Mapping attack chains from cloud to endpoint - Microsoft
Google Cloud
Press · 04 Dec 2019, 08:00 · Breaking the Rules: A Tough Outlook for Home Page Attacks (CVE-2017-11774) - Google Cloud
CyberScoop
Press · 10 Jul 2019, 07:00 · Why Cyber Command’s latest warning is a win for the government's information sharing efforts - CyberScoop
Computer Weekly
Press · 04 Jul 2019, 07:00 · FireEye ties Microsoft Outlook exploit to Iranian hackers - Computer Weekly
BleepingComputer
Press · 03 Jul 2019, 07:00 · Outlook Flaw Exploited by Iranian APT33, US CyberCom Issues Alert - BleepingComputer
Cisco Talos Blog
Press · 06 Feb 2019, 08:00 · 2018 in Snort Rules - Cisco Talos Blog
Google Cloud
Press · 21 Dec 2018, 08:00 · OVERRULED: Containing a Potentially Destructive Adversary | Mandiant - Google Cloud

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.5 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
devcoinfet/SniperRoost12Python16 Aug 2019, 01:28
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.8; EPSS 59.6%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, no prior privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:48.666564+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
13 Oct 2017, 13:00
First press mention
21 Dec 2018, 08:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
22 Jan 2025, 08:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
1 repositories